Perhaps you should try some spelling variations:
khong luong » khong xuong, thuong luong, phuong luong
doi chieu » doc hieu, doi chi, ho chieu
hoc thieu » toc thieu, hoc hien
chinh cua » chinh ca, chinh sua, hinh cua
cua khong » hua khong, cua phuong, cua thuong
luong thi » luong tai
doan dau » doan dieu, phan dau, van dau

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((doi chieu) or (hoc thieu)) tinh - hanh chinh cua khong luong thi ((doan dau) OR (doan va))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chieu) OR (hoc thieu)) tinh - hanh chinh cua khong luong thi ((doan dau) OR (doan va)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doi chieu) or (hoc thieu)) tinh - hanh chinh cua khong luong thi ((doan dau) OR (doan va))".
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) or (hoc thieu)) tinh - hanh chinh cua khong luong thi ((doan dau) OR (doan va))*.