Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
thanh dung » thanh duong, thanh tung, thanh hung
thi chieu » thi chien, thi hien, thi dieu
thi hieu » thi hien, thi dieu, chi hieu
dung cua » dung luan, dung cho
vat cong » bat cong, sat cong, vat con
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan cau » toan cao, toan ban, toan tap

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