Perhaps you should try some spelling variations:
thanh thang » nhanh thang, thanh thanh, thanh hang
thieu sach » chieu sach, thien hach, hieu cach
thang gian » thanh gian, thanh giang, thang gieng
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 dau » phan tu, hang 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 - thanh thang gian hang cong dan ((phan dau) OR (phan van))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc thieu sach - thanh thang gian hang cong dan ((phan dau) OR (phan van))*".