Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
thanh tung » thanh cong
hung luong » hung vuong, dung luong, hang luong
tung tuan » trung tuan, hung tuan, quang tuan
tuan hung » tran hung, luan hung, tuan dung
tai toan » tap toan, tai tuan, tam toan
bai toan » bai 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 (hoc hien)) xanh - thanh tung tuan hung luong ((tai toan) OR (bai toan)) ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chieu) OR (hoc hien)) xanh - thanh tung tuan hung luong ((tai toan) OR (bai toan)) ban*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo chieu) or (hoc hien)) xanh - thanh tung tuan hung luong ((tai toan) OR (bai toan)) ban*".