Perhaps you should try some spelling variations:
nhiet tach » chiet tach
trung tuan » trung thanh, trung tam, tran tuan
truong cua » truong quan, truong cao, huong cua
hoc nhiet » hoc thiet, hoc nghien, hoc hien
truong ca » truong cao, truong va, trong ca
cong tan » cong tac, cong san, cong thanh
tan van » tran van, tang van, luan van

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc nhiet tach - thanh ((trung tuan) or (((truong cua) OR (truong ca)))) trong cong tan van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc nhiet tach - thanh ((trung tuan) OR (((truong cua) OR (truong ca)))) trong cong tan van ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc nhiet tach - thanh ((trung tuan) or (((truong cua) OR (truong ca)))) trong cong tan van ban".
• Adding a wildcard symbol may retrieve word variants: hoc nhiet tach - thanh ((trung tuan) or (((truong cua) OR (truong ca)))) trong cong tan van ban*.