Perhaps you should try some spelling variations:
va thanh » gia thanh, ban thanh, va tinh
sang tai » hang tai, sang tao, tang tai
hieu sau » hieu su, hieu suat, tieu su
sau pham » san pham, su pham, cau pham
pham xuc » pham duc, pham cuc, pham xuan
ky sang » ky nang, ky dang, ky tang
tai hoi » tai khoi, dai hoi, tai hai
va hanh » van hanh, va danh, ban hanh
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky
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 sang tai hoi. hieu sau pham xuc ((va hanh) or (va thanh)) dai ((cua te) or (cua tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky sang tai hoi. hieu sau pham xuc ((va hanh) OR (va thanh)) dai ((cua te) OR (cua tu)).
• Adding a wildcard symbol may retrieve word variants: tu sac ky sang tai hoi. hieu sau pham xuc ((va hanh) or (va thanh)) dai ((cua te) or (cua tu))*.