Perhaps you should try some spelling variations:
hieu nganh » hiem ngan, hieu manh, nghiep nganh
vien nganh » vien thanh
cuong tap » luong tap, luong tai, cong tan
chinh ca » chinh ta, chinh va, chinh tai
ca nhung » cua nhung, cam nhung, va nhung
cong tac » cong ty
quan cau » quang cao, toan cau, quan ha

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((hieu nganh) or (vien nganh)) - hanh chinh ca nhung ((cuong tap) OR (cong tac)) quan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hieu nganh) OR (vien nganh)) - hanh chinh ca nhung ((cuong tap) OR (cong tac)) quan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hieu nganh) or (vien nganh)) - hanh chinh ca nhung ((cuong tap) OR (cong tac)) quan cau".
• Adding a wildcard symbol may retrieve word variants: hoc ((hieu nganh) or (vien nganh)) - hanh chinh ca nhung ((cuong tap) OR (cong tac)) quan cau*.