Perhaps you should try some spelling variations:
tang dan » tang van, tung dan, tang luan
hanh vai » hanh vi, hanh va, hanh tai
hieu vu » hieu va, hieu ve, hieu su
vai cua » dai cua, hai cua, lai cua
ky tang » ky nang, ky dang, kho tang
dan hoc » van hoc, dan toc, dai hoc
luc va » tuc va, loc va
tu sac » tu sach, tu cac, tu bac
vu cam » vu cham, vu cao, va cam
tu san » thu san, tu ban, tu can
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) OR (tu san)) ky tang dan hoc. 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) OR (tu san)) ky tang dan hoc. 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) OR (tu san)) ky tang dan hoc. hieu vu cam ((luc va) or (duc va)) hanh vai cua te".
• Adding a wildcard symbol may retrieve word variants: ((tu sac) OR (tu san)) ky tang dan hoc. hieu vu cam ((luc va) or (duc va)) hanh vai cua te*.