Perhaps you should try some spelling variations:
nhung duong » nhung dung, nhung huong, nhung tuong
cuoc chinh » hoc chinh, quoc thinh, cuoc chien
cho chinh » chon chinh, che chinh, thon chinh
duong van » duong va, luong va, dang van
trung va » truong va, trang va, trung tam
trung ha » trung hoc, trung tam, trung cap
van khan » van khanh, van khang, van phan
khan cap » khan ap, than cap, khoan cam

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((cho chinh) or (cuoc chinh)) sach - hanh ((trung va) OR (trung ha)) nhung duong van khan cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((cho chinh) OR (cuoc chinh)) sach - hanh ((trung va) OR (trung ha)) nhung duong van khan cap*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((cho chinh) or (cuoc chinh)) sach - hanh ((trung va) OR (trung ha)) nhung duong van khan cap*".