Perhaps you should try some spelling variations:
chieu tinh » lieu tinh, chau tinh, kieu tinh
thanh hung » thanh huong, thanh tung, thanh trung
nong cong » cong cong, tong cong, dong cong
nang cong » nang song, dang cong, bang cong
manh toan » thanh toan, anh tuan, tinh toan
hung cua » huong cua, chung cua, khung cua
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chieu tinh) OR (trieu tinh)) - thanh hung cua ((nong cong) or (nang cong)) manh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu tinh) OR (trieu tinh)) - thanh hung cua ((nong cong) OR (nang cong)) manh toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu tinh) OR (trieu tinh)) - thanh hung cua ((nong cong) or (nang cong)) manh toan ban".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu tinh) OR (trieu tinh)) - thanh hung cua ((nong cong) or (nang cong)) manh toan ban*.