SimilarityRank
can_be_tricky 0.722 72729
tricky 0.679 23559
be_very_difficult 0.670 37607
be_extremely_difficult 0.661 97037
be_not_easy 0.648 17254
can_be_difficult 0.639 30674
be_hard_to 0.632 23656
difficult 0.625 2515
be_very_hard 0.607 91214
be_complicate 0.601 31245
can_be_hard 0.601 97851
be_tough 0.600 11759
be_problematic 0.599 27860
be_difficult_to 0.594 37814
be_not_always_easy 0.594 89460
a_tricky 0.572 79167
it_be_tough 0.572 29779
be_easy_than 0.567 81734
the_hard_part_be 0.564 92576
,_if_not_impossible 0.564 78666
the_hard_part 0.564 66943
require_a_lot_of 0.562 89038
very_difficult 0.561 34974
make_it_hard_to 0.560 48457
be_difficult_for 0.560 52554