Perhaps you should try some spelling variations:
thieu sach » chieu sach, thien hach, hieu cach
truong cua » truong ca, truong quan, truong cao
nhung cong » dung cong, thong cong, hang cong
trung cua » trung tuan, trung cap, dung cua
cong tan » cong tac, cong san, cong thanh
phan dau » phan tu, hang dau
phan cac » nhan cach, phan lap, phan 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 ((trung cua) OR (truong cua)) nhung cong tan ((phan dau) or (phan cac))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc thieu sach - thanh ((trung cua) OR (truong cua)) nhung cong tan ((phan dau) OR (phan cac)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc thieu sach - thanh ((trung cua) OR (truong cua)) nhung cong tan ((phan dau) or (phan cac))".
• Adding a wildcard symbol may retrieve word variants: toc thieu sach - thanh ((trung cua) OR (truong cua)) nhung cong tan ((phan dau) or (phan cac))*.