Perhaps you should try some spelling variations:
tranh trong » tran trong, trinh trong, anh trong
thanh trong » thanh trung, hanh trong, nhanh trong
theo chieu » theo tieu, ho chieu, theo chu
chieu xanh » chieu sach, chieu sang, chieu tinh
bang cong » dang cong, bang song, hang cong
chu bang » thu bang, chuc nang, chu quang
cong dan » cong san, cong tan, huong dan
than cau » phan cau, than cap, thanh chau
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 xanh - ((thanh trong) or (tranh trong)) chu bang cong dan ((than cau) or (toan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu xanh - ((thanh trong) OR (tranh trong)) chu bang cong dan ((than cau) OR (toan cau)).
• Adding a wildcard symbol may retrieve word variants: theo chieu xanh - ((thanh trong) or (tranh trong)) chu bang cong dan ((than cau) or (toan cau))*.