Perhaps you should try some spelling variations:
nang hoc » nang doc, nang luc, dong hoc
hieu van » hieu va, thien van, lieu va
van hanh » van thanh, ban hanh, van anh
ve cach » va cach, ve cac, ve canh
cach tu » cach thuc
tu nang » tru nang, tu nong, tu nano
hoc hoc » hoc hoa, toc hoc, hoc hoi
van cac » van hac, van cau, van bac
cac xuc » cam xuc, cac nuoc, chat xuc
xuc van » duc van, luc van, vuc van
vi cua » vai cua, di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: ve cach tu nang hoc hoc. hieu van cac xuc van hanh ((vi cua) or (dai cua)) chu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ve cach tu nang hoc hoc. hieu van cac xuc van hanh ((vi cua) OR (dai cua)) chu*.