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 » bang cong, hang cong, lang dong
dang cong » dung cong
pha tap » pham tai
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 (dang cong)) doanh ((pha 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 (dang cong)) doanh ((pha tap) OR (han tap)).
• Adding a wildcard symbol may retrieve word variants: hoc thieu sach - canh tranh luan ((lang cong) or (dang cong)) doanh ((pha tap) or (han tap))*.