Perhaps you should try some spelling variations:
hieu lang » chieu sang, hieu quang, nhieu tang
song luan » tong luan, cong luan, dong luan
luan phan » luan van, luan hoan
cua nong » cua cong, cua dong, cua song
cuu nong » cuu cong, cuu nang, cuu tong
phan cau » phan dau, phan cac, phan tu
ho hieu » ho chieu, hoi hieu, nho hieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho hieu lang - canh tranh ((cua nong) or (cuu nong)) song luan phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho hieu lang - canh tranh ((cua nong) OR (cuu nong)) song luan phan cau.
• Adding a wildcard symbol may retrieve word variants: ho hieu lang - canh tranh ((cua nong) or (cuu nong)) song luan phan cau*.