Perhaps you should try some spelling variations:
tang dan » tang van, tung dan, tang luan
ky tang » ky nang, ky dang, kho tang
dan hoi » dan hoc, dai hoi, van hoi
hieu va » lieu va, hieu qua
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky
va cam » va cham, va cac, va cao
xuc va » duc va, tuc va, xac va
luc va » duc va, tuc va, loc va
vi cua » vai cua, di cua
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 va cam ((xuc va) or (luc va)) hanh vi cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky tang dan hoi. hieu va cam ((xuc va) OR (luc va)) hanh vi cua tu.
• Adding a wildcard symbol may retrieve word variants: tu sac ky tang dan hoi. hieu va cam ((xuc va) or (luc va)) hanh vi cua tu*.