Perhaps you should try some spelling variations:
thanh trung » thanh tung
nhung cong » dung cong, thong cong, hang cong
thi hieu » thi chieu, thi hien, thi dieu
ho chieu » theo chieu, hoc thieu, doi chieu
trung va » truong va, trang va, trung ha
cong dan » cong san, cong tan, huong dan
phan lap » phan 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: ((thi hieu) or (ho chieu)) sach - thanh trung va nhung cong dan ((phan lap) or (phan van))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thi hieu) OR (ho chieu)) sach - thanh trung va nhung cong dan ((phan lap) OR (phan van)).
• Adding a wildcard symbol may retrieve word variants: ((thi hieu) or (ho chieu)) sach - thanh trung va nhung cong dan ((phan lap) or (phan van))*.