Perhaps you should try some spelling variations:
thien chien » thien nhien
theo chieu » theo tieu, ho chieu, theo chu
thanh hang » thanh hoang, thanh thang, tranh hang
thong cong » trong cong, tong cong, thong thong
thi chien » thi hien, thi thien, thi lien
ca thong » ca thuong, va thong, ca trong
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan cau » toan cao, toan ban, toan tap
hang ca » hang va, nang cao, hang tai

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) or (((thi chien) OR (thien chien)))) xanh - thanh hang ca thong cong tac toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chieu) OR (((thi chien) OR (thien chien)))) xanh - thanh hang ca thong cong tac toan cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo chieu) or (((thi chien) OR (thien chien)))) xanh - thanh hang ca thong cong tac toan cau*".