Perhaps you should try some spelling variations:
thieu sach » chieu sach, thien hach, hieu cach
hoc thieu » toc thieu, hoc hien
luan lang » luan nang, quan lang, luan tang
lan lang » lan tang, van lang, gian lang
ban lang » ban hang, ba lang, ban dang
cong dan » cong san, cong tan, huong dan
dan chan » dan gian, dan ca, van chat
chan tap » han tap, phan tap, chan ta

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thieu sach - hanh chinh ((luan lang) or (((lan lang) OR (ban lang)))) cong dan chan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sach - hanh chinh ((luan lang) OR (((lan lang) OR (ban lang)))) cong dan chan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu sach - hanh chinh ((luan lang) or (((lan lang) OR (ban lang)))) cong dan chan tap".
• Adding a wildcard symbol may retrieve word variants: hoc thieu sach - hanh chinh ((luan lang) or (((lan lang) OR (ban lang)))) cong dan chan tap*.