Perhaps you should try some spelling variations:
sang tai » hang tai, sang tao, tang tai
hieu va » hieu qua
va hanh » van hanh, va thanh, va danh
ky sang » ky nang, ky dang, ky tang
tai hoi » tai khoi, dai hoi, tai hai
cam loc » cam lo
vi cua » vai cua, di cua
loc va » hoc va, luc va
tu sac » tu sach, tu cac, tu bac
tu san » thu san, tu ban, tu can
cua te » cua tu

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