Perhaps you should try some spelling variations:
tieng nganh » tieng anh, trong nganh, vien nganh
quoc tieng » quoc tien, hoc tieng, luc tieng
cua rung » cua trung, cua rang, cua truong
qua dung » quang dung, su dung, qua song
van toan » van tan, van thanh, manh toan
van tuan » van quan, van ban, anh tuan

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

• Performing a fuzzy search may retrieve terms with similar spellings: quoc tieng nganh - canh tranh ((cua rung) or (qua dung)) cong ((van toan) or (van tuan)) ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: quoc tieng nganh - canh tranh ((cua rung) OR (qua dung)) cong ((van toan) OR (van tuan)) ban.
• Adding a wildcard symbol may retrieve word variants: quoc tieng nganh - canh tranh ((cua rung) or (qua dung)) cong ((van toan) or (van tuan)) ban*.