Perhaps you should try some spelling variations:
tieng nganh » tieng anh, trong nganh, vien nganh
nhung cong » dung cong, thong cong, nhung don
hoc tieng » hoc hien
chinh cua » chinh ca, chinh sua, hinh cua
hang cong » hang nong, bang cong, thanh cong
dang cong » dung cong
san toan » van toan, dan toan, manh toan
toan ban » van ban

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 nganh - hanh chinh cua ((nhung cong) or (((hang cong) OR (dang cong)))) san toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc tieng nganh - hanh chinh cua ((nhung cong) OR (((hang cong) OR (dang cong)))) san toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc tieng nganh - hanh chinh cua ((nhung cong) or (((hang cong) OR (dang cong)))) san toan ban".
• Adding a wildcard symbol may retrieve word variants: hoc tieng nganh - hanh chinh cua ((nhung cong) or (((hang cong) OR (dang cong)))) san toan ban*.