Perhaps you should try some spelling variations:
chat triet » chet triet, phat trien, chat thien
hieu vien » hieu hien, thieu nien, hieu tieng
thanh lam » thanh lap, hanh lam, thanh nam
hieu viec » nhieu viec, hieu ve, sieu viet
lam chat » luan chat, cao chat, ly chat
va thanh » gia thanh, ban thanh, va tinh
sach ky » sac ky, sach ty, sach kem
dang ha » dong ha, dung ha, lang ha
ha hoi » hoa hoi, ha noi, xa hoi
du va » dau va, tu va, su va

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

• Performing a fuzzy search may retrieve terms with similar spellings: su ((sach ky) or (sach y)) dang ha hoi. ((hieu vien) OR (hieu viec)) cac du va thanh lam chat triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((sach ky) OR (sach y)) dang ha hoi. ((hieu vien) OR (hieu viec)) cac du va thanh lam chat triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su ((sach ky) or (sach y)) dang ha hoi. ((hieu vien) OR (hieu viec)) cac du va thanh lam chat triet".
• Adding a wildcard symbol may retrieve word variants: su ((sach ky) or (sach y)) dang ha hoi. ((hieu vien) OR (hieu viec)) cac du va thanh lam chat triet*.