Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hanh tranh » canh tranh, hanh trinh, hanh trang
hoc tieng » hoc hien
tieng han » tieng anh
tranh cua » doanh cua, manh cua
cua nhung » va nhung
cong san » cong tac
toan ban » van ban
toan cao » 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: hoc tieng han - hanh tranh cua nhung cong san ((toan ban) or (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc tieng han - hanh tranh cua nhung cong san ((toan ban) OR (toan cao)).
• Adding a wildcard symbol may retrieve word variants: hoc tieng han - hanh tranh cua nhung cong san ((toan ban) or (toan cao))*.