Perhaps you should try some spelling variations:
thieu sach » chieu sach, thien hach, hieu cach
thong cong » trong cong, tong cong, thong thong
tuan thanh » thuan thanh, quan thanh, tran thanh
hoc thieu » toc thieu, hoc hien
truong va » truong dai, truong cao, truong dao
cong tuan » cong tan, cong luan, cong thanh
trung ha » trung hoc, trung tam, trung cap

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 - thanh ((trung ha) or (truong va)) thong cong tuan thanh san~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sach - thanh ((trung ha) OR (truong va)) thong cong tuan thanh san.
• Adding a wildcard symbol may retrieve word variants: hoc thieu sach - thanh ((trung ha) or (truong va)) thong cong tuan thanh san*.