Perhaps you should try some spelling variations:
tang tai » hang tai, dung tai, sang tao
sang lap » sang tao, sang ma, sang tai
hieu ve » hieu va, hieu van
cam luc » cam xuc, cau luc
va hanh » van hanh, va thanh, va danh
cua tu » cua tuc, cua cu, cua te
luc va » duc va, tuc va, loc va
tu sac » tu sach, tu cac, tu san
ve cam » ve cham, ve cac, va cam
sac ky » cac ky, sai ky
cua su » qua su

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 ((sang lap) or (tang tai)) hoi. hieu ve cam luc va hanh vi ((cua tu) or (cua su))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky ((sang lap) OR (tang tai)) hoi. hieu ve cam luc va hanh vi ((cua tu) OR (cua su)).
• Adding a wildcard symbol may retrieve word variants: tu sac ky ((sang lap) or (tang tai)) hoi. hieu ve cam luc va hanh vi ((cua tu) or (cua su))*.