Perhaps you should try some spelling variations:
thieu sach » chieu sach, thien hach, hieu cach
thang cua » thong cua, hang cua, than cua
hang cong » dang cong, hang nong, bang cong
tang cua » mang cua, hang cua, tang luan
cong san » cong tac
toan tai » toan tap, doanh tai, toan cao
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc thieu sach - hanh ((thang cua) or (tang cua)) hang cong san ((toan tai) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc thieu sach - hanh ((thang cua) OR (tang cua)) hang cong san ((toan tai) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: toc thieu sach - hanh ((thang cua) or (tang cua)) hang cong san ((toan tai) or (toan ban))*.