Perhaps you should try some spelling variations:
thieu sach » chieu sach, thien hach, hieu cach
hanh thong » anh thong, hanh trong, hang thong
thong gian » khong gian, thong giao, chong gian
gian hang » gian lang, gia hang, gan hang
hang cong » dang cong, hang nong, bang cong
cong dan » cong san, cong tan, huong dan
phan lap » phan dau
phan van » pham van, thanh van, luan van

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 thong gian hang cong dan ((phan lap) or (phan van))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc thieu sach - hanh thong gian hang cong dan ((phan lap) OR (phan van))*.