Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, kieu tinh
nhung cong » dung cong, thong cong, hang cong
chau tinh » cuu tinh, ha tinh, cua tinh
trong dam » trong lam, trong nam, trong cac
trung dai » truong dai, truong dao, trung tam
cong san » cong tac
san toan » van toan, dan toan, manh toan
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 (chau tinh)) - hanh ((trong dam) or (trung dai)) nhung cong san toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu tinh) OR (chau tinh)) - hanh ((trong dam) OR (trung dai)) nhung cong san toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((chieu tinh) OR (chau tinh)) - hanh ((trong dam) or (trung dai)) nhung cong san toan tap".
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu tinh) OR (chau tinh)) - hanh ((trong dam) or (trung dai)) nhung cong san toan tap*.