Perhaps you should try some spelling variations:
nhung duong » nhung dung, nhung huong, nhung tuong
tranh chat » trinh chat, tranh chap, tinh chat
chiet tach » chieu sach
chat nhung » chat ngung, thuat nhung, cua nhung
duong manh » duong van
hieu lang » chieu sang, hieu quang, nhieu tang
toan cau » toan cao, toan ban, toan tai
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((hieu lang) or (chiet tach)) - canh tranh chat nhung duong manh ((toan cau) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((hieu lang) OR (chiet tach)) - canh tranh chat nhung duong manh ((toan cau) OR (toan tap)).
• Adding a wildcard symbol may retrieve word variants: theo ((hieu lang) or (chiet tach)) - canh tranh chat nhung duong manh ((toan cau) or (toan tap))*.