Perhaps you should try some spelling variations:
trinh van » trinh han, trinh quan, trinh toan
dang cong » dung cong
cong sang » cong san, cong lang, cong vang
sang than » cang thang, dang thanh, sang tao
ho chieu » theo chieu, hoc thieu, doi chieu
theo chu » theo chieu, cho chu, chao chu
trinh va » trinh vat, trinh ve, trinh vi
than cao » toan cao, thai cao, than cap

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho chieu) or (theo chu)) xanh - hanh ((trinh va) OR (trinh van)) dang cong sang than cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (theo chu)) xanh - hanh ((trinh va) OR (trinh van)) dang cong sang than cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) or (theo chu)) xanh - hanh ((trinh va) OR (trinh van)) dang cong sang than cao".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (theo chu)) xanh - hanh ((trinh va) OR (trinh van)) dang cong sang than cao*.