Perhaps you should try some spelling variations:
kho tang » cao tang
hanh vai » hanh vi, hanh va, hanh tai
dan hoc » van hoc, dan toc, toan hoc
cam tuc » cam xuc, cam tu, nam thuc
dai hoi » dai hai, dai moi
vai cua » dai cua, hai cua, lai cua
va hanh » van hanh, va thanh, va danh
sac kho » suc khoe, cac khoi, dac khoa
hieu vu » hieu va, hieu ve, hieu su
tuc va » thuc va, truc va, tuc xa
tu sac » tu sach, tu cac, tu san
vu cam » vu cham, vu cao, va cam
cua te » cua tu

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 kho tang ((((dai hoi) OR (dai hoc))) or (dan hoc)). hieu vu cam tuc va hanh vai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac kho tang ((((dai hoi) OR (dai hoc))) OR (dan hoc)). hieu vu cam tuc va hanh vai cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac kho tang ((((dai hoi) OR (dai hoc))) or (dan hoc)). hieu vu cam tuc va hanh vai cua te".
• Adding a wildcard symbol may retrieve word variants: tu sac kho tang ((((dai hoi) OR (dai hoc))) or (dan hoc)). hieu vu cam tuc va hanh vai cua te*.