Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
tru nang » tra nang, tri nang, truc nano
van hanh » van thanh, ban hanh, van anh
khoa hoc » hoa hoc
cach tru » cach tu, cac tru, cach thuc
cac xuc » cam xuc, cac nuoc, chat xuc
xuc van » duc van, luc van, vuc van
te cach » ve cach, te sach, tu cach
van cac » van hac, van cau, van bac
cho hoc » co hoc
vi cua » vai cua
di cua » dai cua, doi cua, de cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: te cach tru nang ((cho hoc) or (khoa hoc)). hieu van cac xuc van hanh ((vi cua) OR (di cua)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te cach tru nang ((cho hoc) OR (khoa hoc)). hieu van cac xuc van hanh ((vi cua) OR (di cua)) cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te cach tru nang ((cho hoc) or (khoa hoc)). hieu van cac xuc van hanh ((vi cua) OR (di cua)) cau*".