Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu xanh » chieu sach, chieu sang, chieu tinh
trinh vat » trinh luat, sinh vat, trinh han
trinh van » trinh han, trinh quan, trinh toan
bang cong » dang cong, bang song, hang cong
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
toan cao » toan ban, toan tap
minh va » tinh va, sinh va, sinh vat

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 xanh - hanh ((minh va) or (((trinh vat) or (trinh van)))) bang cong tan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu xanh - hanh ((minh va) OR (((trinh vat) OR (trinh van)))) bang cong tan toan cao.
• Adding a wildcard symbol may retrieve word variants: theo chieu xanh - hanh ((minh va) or (((trinh vat) or (trinh van)))) bang cong tan toan cao*.