Perhaps you should try some spelling variations:
thieu sach » chieu sach, thien hach, hieu cach
tranh luan » trinh luan, trinh luat, doanh luan
hoc thieu » toc thieu, hoc hien
lang cong » dang cong, hang cong, lang dong
bang cong » dang cong, bang song, hang cong
phan tap » phan lap, pha tap, phan tu
han tap » han tai, toan tap, nhan tai

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 - canh tranh luan ((lang cong) or (bang cong)) doanh ((phan tap) OR (han tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sach - canh tranh luan ((lang cong) OR (bang cong)) doanh ((phan tap) OR (han tap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu sach - canh tranh luan ((lang cong) or (bang cong)) doanh ((phan tap) OR (han tap))".
• Adding a wildcard symbol may retrieve word variants: hoc thieu sach - canh tranh luan ((lang cong) or (bang cong)) doanh ((phan tap) OR (han tap))*.