Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
trinh van » trinh han, trinh quan, trinh toan
trinh va » trinh vat, trinh ve, trinh vi
cong tap » cuong tap, cong tac, tong tap
cong tan » cong tac, cong san, cong thanh
doan cao » doanh cao, toan cao, doan cap

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