Perhaps you should try some spelling variations:
hanh vai » hanh vi, hanh va, hanh tai
hieu vu » hieu va, hieu ve, hieu su
ky tang » ky nang, ky dang, kho tang
dan hoi » dan hoc, van hoi, dang khoi
vai cua » dai cua, hai cua, lai cua
dai hoi » dai hoc, dai hai, dai moi
luc va » tuc va, loc va
tu sac » tu sach, tu cac, tu san
vu cam » vu cham, vu cao, va cam
sac ky » cac ky, sai ky
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 ky tang ((dan hoi) OR (dai hoi)). hieu vu cam ((luc va) or (duc va)) hanh vai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky tang ((dan hoi) OR (dai hoi)). hieu vu cam ((luc va) OR (duc va)) hanh vai cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ky tang ((dan hoi) OR (dai hoi)). hieu vu cam ((luc va) or (duc va)) hanh vai cua te".
• Adding a wildcard symbol may retrieve word variants: tu sac ky tang ((dan hoi) OR (dai hoi)). hieu vu cam ((luc va) or (duc va)) hanh vai cua te*.