Perhaps you should try some spelling variations:
quang tuan » quang thanh, quan luan, quang cua
theo chieu » theo tieu, ho chieu, thi chieu
hung tuan » hung tran, trung tuan, hung thang
theo chu » cho chu, chao chu, theo yeu
cac toan » cac khoan, hach toan, cac thanh
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 (theo chu)) sang - manh ((hung tuan) or (quang tuan)) dung trong cac toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chieu) OR (theo chu)) sang - manh ((hung tuan) OR (quang tuan)) dung trong cac toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo chieu) OR (theo chu)) sang - manh ((hung tuan) or (quang tuan)) dung trong cac toan cau".
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) OR (theo chu)) sang - manh ((hung tuan) or (quang tuan)) dung trong cac toan cau*.