Perhaps you should try some spelling variations:
hoc thieu » toc thieu, hoc hien
chinh vat » chinh va, chinh dat, chinh viet
tong cong » trong cong, cong cong, dung cong
ho chieu » theo chieu, doi chieu, mot chieu
vat tong » vat trong, va tong, vat dong
cong san » cong tac
chan ban » can ban, chat ban, chan doan
chan nan » chan nhan, chang nang, chan doan

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 vat tong cong san ((chan ban) OR (chan nan))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (hoc thieu)) sach - hanh chinh vat tong cong san ((chan ban) OR (chan nan)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) or (hoc thieu)) sach - hanh chinh vat tong cong san ((chan ban) OR (chan nan))".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (hoc thieu)) sach - hanh chinh vat tong cong san ((chan ban) OR (chan nan))*.