Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
hieu manh » chieu xanh, hieu nganh, dieu hanh
dung cong » dung trong
trinh va » trinh van, trinh vat, trinh ve
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
toan ban » van ban

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 sang) or (hieu manh)) - hanh ((trinh va) or (trinh luat)) dung cong tan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sang) OR (hieu manh)) - hanh ((trinh va) OR (trinh luat)) dung cong tan toan ban.
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sang) or (hieu manh)) - hanh ((trinh va) or (trinh luat)) dung cong tan toan ban*.