Perhaps you should try some spelling variations:
thieu sach » chieu sach, thien hach, hieu cach
hanh tranh » canh tranh, hanh trinh, hanh trang
hoc thieu » toc thieu, hoc hien
cua nhung » va nhung
cong vang » cong lang, cong quang, cong ngang
cua hang » cua dang, cua cong, cua ban
vang van » dang van, tang van, lang van

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 tranh ((cua hang) or (cua nhung)) cong vang van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sach - hanh tranh ((cua hang) OR (cua nhung)) cong vang van ban.
• Adding a wildcard symbol may retrieve word variants: hoc thieu sach - hanh tranh ((cua hang) or (cua nhung)) cong vang van ban*.