Perhaps you should try some spelling variations:
hoc thieu » toc thieu, hoc hien
chinh cua » chinh ca, chinh sua, hinh cua
cua nhung » va nhung
cong lang » cong vang, cong luong, cong quang
ho chieu » theo chieu, doi chieu, mot chieu
cong van » cong vang, cong san, song van
toan cau » toan cao, toan ban, 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: ((ho chieu) or (hoc thieu)) sach - hanh chinh cua nhung ((cong van) or (cong lang)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (hoc thieu)) sach - hanh chinh cua nhung ((cong van) OR (cong lang)) toan cau.
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (hoc thieu)) sach - hanh chinh cua nhung ((cong van) or (cong lang)) toan cau*.