Perhaps you should try some spelling variations:
thai cong » tai cong, thi cong, thanh cong
va thanh » gia thanh, ban thanh, va tinh
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
hieu va » lieu va, hieu qua
va thai » van thai, va tai, va tham
cong va » dong va, cong ha, cong tac
te cac » tu cac, ve cac, te cao
vi cua » vai cua
di cua » dai cua, doi cua, de cua

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: te cac ky lang xa hoi. hieu va thai cong va thanh ((vi cua) or (di cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te cac ky lang xa hoi. hieu va thai cong va thanh ((vi cua) OR (di cua)) tre.
• Adding a wildcard symbol may retrieve word variants: te cac ky lang xa hoi. hieu va thai cong va thanh ((vi cua) or (di cua)) tre*.