Perhaps you should try some spelling variations:
thanh trung » thanh tung
tieu tinh » trieu tinh, tieu trinh, lieu tinh
trung cua » truong cua, trung tuan, trung cap
cua nhung » va nhung
hoc tieu » hoc thieu, hoc dieu, hoc sieu
cong tan » cong san, cong thanh, cong ty
cong tac » cong ty
toan cao » toan ban
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc tieu tinh - thanh trung cua nhung ((cong tan) OR (cong tac)) ((toan cao) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc tieu tinh - thanh trung cua nhung ((cong tan) OR (cong tac)) ((toan cao) OR (toan tap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc tieu tinh - thanh trung cua nhung ((cong tan) OR (cong tac)) ((toan cao) or (toan tap))".
• Adding a wildcard symbol may retrieve word variants: hoc tieu tinh - thanh trung cua nhung ((cong tan) OR (cong tac)) ((toan cao) or (toan tap))*.