Perhaps you should try some spelling variations:
thieu sach » chieu sach, thien hach, hieu cach
nhung cong » dung cong, thong cong, hang cong
hoc thieu » toc thieu, hoc hien
truong va » truong dai, truong cao, truong dao
trung va » trang va, trung ha, trung tam
dan than » dan chan, ban than, van than
van tuan » van quan, van ban, anh tuan

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 va) OR (truong va)) nhung cong ((dan than) or (van tuan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sach - thanh ((trung va) OR (truong va)) nhung cong ((dan than) OR (van tuan)) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu sach - thanh ((trung va) OR (truong va)) nhung cong ((dan than) or (van tuan)) cau".
• Adding a wildcard symbol may retrieve word variants: hoc thieu sach - thanh ((trung va) OR (truong va)) nhung cong ((dan than) or (van tuan)) cau*.