Perhaps you should try some spelling variations:
trinh toant » tinh toan, trinh thanh, trinh hoan
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
trinh toan » tinh toan, thanh toan, trinh han
hang cong » dang cong, hang nong, bang cong
cong manh » cong danh, duong manh, cong thanh
manh toan » thanh toan, anh tuan, tinh 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 sach - hanh ((trinh toan) or (trinh toant)) hang cong manh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sach - hanh ((trinh toan) OR (trinh toant)) hang cong manh toan cau.
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - hanh ((trinh toan) or (trinh toant)) hang cong manh toan cau*.