Perhaps you should try some spelling variations:
hieu sach » chieu sach, hieu cach, dien sach
truong va » truong dai, truong cao, truong dao
duong van » duong va, dang van, trong van
tuan chau » tran chau, chuan chau, thanh chau
doc hieu » toc thieu, hoc thieu, hoc hien
trung va » trang va, trung ha, trung tam
luong va » dung va

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: doc hieu sach - thanh ((trung va) or (truong va)) thong ((duong van) OR (luong va)) tuan chau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu sach - thanh ((trung va) OR (truong va)) thong ((duong van) OR (luong va)) tuan chau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc hieu sach - thanh ((trung va) or (truong va)) thong ((duong van) OR (luong va)) tuan chau".
• Adding a wildcard symbol may retrieve word variants: doc hieu sach - thanh ((trung va) or (truong va)) thong ((duong van) OR (luong va)) tuan chau*.