Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
truong lop » truong hop, truong lon, truong long
bien tinh » bi tinh, yen tinh, diep tinh
trung lap » trung cap, truong lam, trung tam
dang cong » dung cong
cong van » cong vang, cong san, song van
van toan » van tuan, van tan, van thanh
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 ((chieu tinh) or (bien tinh)) - thanh ((trung lap) OR (truong lop)) dang cong van toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu tinh) OR (bien tinh)) - thanh ((trung lap) OR (truong lop)) dang cong van toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((chieu tinh) or (bien tinh)) - thanh ((trung lap) OR (truong lop)) dang cong van toan tap".
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu tinh) or (bien tinh)) - thanh ((trung lap) OR (truong lop)) dang cong van toan tap*.