Perhaps you should try some spelling variations:
tang dan » tang van, tung dan, tang luan
van hanh » van thanh, ban hanh, van anh
ky tang » ky nang, ky dang, kho tang
dan hoi » dan hoc, dai hoi, van hoi
hieu vu » hieu va, hieu ve, hieu su
va hanh » va thanh, va danh, ban hanh
vai cua » dai cua, hai cua, lai cua
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky
vu cam » vu cham, vu cao, va cam
cua tu » cua tuc, cua su, cua cu

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. hieu vu cam xuc ((va hanh) or (van hanh)) vai cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky tang dan hoi. hieu vu cam xuc ((va hanh) OR (van hanh)) vai cua tu.
• Adding a wildcard symbol may retrieve word variants: tu sac ky tang dan hoi. hieu vu cam xuc ((va hanh) or (van hanh)) vai cua tu*.