Perhaps you should try some spelling variations:
thuong cong » thong cong, thuong con, thuong dong
chieu tinh » trieu tinh, lieu tinh, kieu tinh
cong thanh » dong thanh, cong trinh, cong tan
thanh toan » thanh hoa, thanh san, tinh toan
chau tinh » cuu tinh, ha tinh, cua tinh
tang vatn » tang van, dang van, tan van
tang vat » tang van, dang vat, bang vat
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: theo ((chieu tinh) OR (chau tinh)) - anh ((tang vat) or (tang vatn)) thuong cong thanh toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu tinh) OR (chau tinh)) - anh ((tang vat) OR (tang vatn)) thuong cong thanh toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu tinh) OR (chau tinh)) - anh ((tang vat) or (tang vatn)) thuong cong thanh toan tap".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu tinh) OR (chau tinh)) - anh ((tang vat) or (tang vatn)) thuong cong thanh toan tap*.