Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu sang » chieu sach, chieu xanh, hieu lang
nhung cong » dung cong, thong cong, hang cong
trinh vat » trinh van, trinh luat, sinh vat
cong manh » cong danh, duong manh, cong thanh
manh toan » thanh toan, anh tuan, tinh toan
trinh he » trinh han, trinh hoa, trinh thi
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 sang - hanh ((trinh he) or (trinh vat)) nhung cong manh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sang - hanh ((trinh he) OR (trinh vat)) nhung cong manh toan cau.
• Adding a wildcard symbol may retrieve word variants: theo chieu sang - hanh ((trinh he) or (trinh vat)) nhung cong manh toan cau*.