Perhaps you should try some spelling variations:
nghien tinh » nghiem tinh, nghiep tinh, nghiep minh
hoc nghien » hoc hien
thanh chau » thanh cha, thanh cham, thanh chu
tranh cua » doanh cua, manh cua
cong vang » cong lang, cong quang, cong ngang
cua tong » cua cong, cua dong, cua nong
cong van » cong san, song van, cong tan

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc nghien tinh - canh tranh cua tong ((cong van) or (cong vang)) thanh chau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc nghien tinh - canh tranh cua tong ((cong van) OR (cong vang)) thanh chau.
• Adding a wildcard symbol may retrieve word variants: hoc nghien tinh - canh tranh cua tong ((cong van) or (cong vang)) thanh chau*.