Perhaps you should try some spelling variations:
nhung tuong » nhung phuong, hung vuong, nhung cong
nhung huong » nhung phuong, nhung cong, nhung dung
chieu sang » chieu xanh, hieu lang, nhieu tang
chieu sach » chinh sach, chiet tach, chieu xanh
tranh va » tranh van, trang va, trinh va
dan toan » van toan, dan than, manh toan
toan cao » toan ban, toan tap

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 (chieu sach)) - canh tranh va ((nhung huong) OR (nhung tuong)) dan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sang) OR (chieu sach)) - canh tranh va ((nhung huong) OR (nhung tuong)) dan toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sang) or (chieu sach)) - canh tranh va ((nhung huong) OR (nhung tuong)) dan toan cao".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sang) or (chieu sach)) - canh tranh va ((nhung huong) OR (nhung tuong)) dan toan cao*.