Perhaps you should try some spelling variations:
tang dai » tang tai, tang dan, lang dai
tung dan » dung dan, huong dan, trung dai
hieu vu » hieu va, hieu ve, hieu su
va hanh » van hanh, va thanh, va danh
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky
vu cam » vu cham, vu cao, va cam
xuc va » duc va, tuc va, luc 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 dai) or (tung dan)) hoi. hieu vu cam xuc va hanh vi cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky ((tang dai) OR (tung dan)) hoi. hieu vu cam xuc va hanh vi cua tu.
• Adding a wildcard symbol may retrieve word variants: tu sac ky ((tang dai) or (tung dan)) hoi. hieu vu cam xuc va hanh vi cua tu*.