Perhaps you should try some spelling variations:
nhanh thai » nhanh thi, nhanh thanh, nhanh thang
van nhanh » van thanh, van hanh, van khanh
su triet » su viet, su tien, ve triet
dua tren » dung tren
hieu van » hieu va, thien van, lieu va
hac luc » nhan luc, than luc
luc van » luoc van, luu van, duc van
van hac » van hoc, van ha, van hai
nang o » nang co, nang ho, nang ro
tu san » thu san, tu ban, tu can
tu sac » tu sach, tu cac, tu bac
o lai » o lao

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sac) or (tu san)) ky nang o lai. hieu van hac luc van nhanh thai ((dua tren) or (su triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sac) OR (tu san)) ky nang o lai. hieu van hac luc van nhanh thai ((dua tren) OR (su triet)).
• Adding a wildcard symbol may retrieve word variants: ((tu sac) or (tu san)) ky nang o lai. hieu van hac luc van nhanh thai ((dua tren) or (su triet))*.