Perhaps you should try some spelling variations:
thai son » thai den, thai do, thai hoc
ky lang » ky nang, ky dang, tay lang
ky tang » ky nang, ky dang, kho tang
hieu va » lieu va, hieu qua
va thai » van thai, va tai, va tham
danh vi » dinh vi, danh di, danh va
te cac » tu cac, ve cac, te cao
son va » song va, son la, lon va
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: te cac ((ky lang) or (ky tang)) xa hoi. hieu va thai son va ((danh vi) OR (hanh vi)) cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te cac ((ky lang) OR (ky tang)) xa hoi. hieu va thai son va ((danh vi) OR (hanh vi)) cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te cac ((ky lang) or (ky tang)) xa hoi. hieu va thai son va ((danh vi) OR (hanh vi)) cua te".
• Adding a wildcard symbol may retrieve word variants: te cac ((ky lang) or (ky tang)) xa hoi. hieu va thai son va ((danh vi) OR (hanh vi)) cua te*.