Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
tranh chua » tranh cua, trinh chuan, tranh chap
lieu tinh » trieu tinh, diep tinh, bien tinh
chua nang » chuc nang, chua xang, kha nang
nang tong » nang trong, nang song, nang dong
doanh cao » doanh co, doanh bao, doanh cho
tong tap » tuong tac, trong tan, cong tac
doan cao » toan cao, doan cap, hoang cao

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 (lieu tinh)) - canh tranh chua nang tong tap ((doan cao) OR (doanh cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu xanh) OR (lieu tinh)) - canh tranh chua nang tong tap ((doan cao) OR (doanh cao)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu xanh) or (lieu tinh)) - canh tranh chua nang tong tap ((doan cao) OR (doanh cao))".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu xanh) or (lieu tinh)) - canh tranh chua nang tong tap ((doan cao) OR (doanh cao))*.