Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu tinh, hieu manh
chieu sang » chieu sach, hieu lang, nhieu tang
canh trinh » canh tranh, hanh trinh, canh tinh
thong cong » tong cong, thong thong, phong chong
trinh va » trinh van, trinh vat, trinh ve
san nhan » van nhan, ban nhan, sat nhan
nhan su » nhan luc

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) OR (chieu sang)) - canh trinh va ((thong cong) or (trong cong)) san nhan su~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu xanh) OR (chieu sang)) - canh trinh va ((thong cong) OR (trong cong)) san nhan su.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu xanh) OR (chieu sang)) - canh trinh va ((thong cong) or (trong cong)) san nhan su".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu xanh) OR (chieu sang)) - canh trinh va ((thong cong) or (trong cong)) san nhan su*.