Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
nhung cong » dung cong, thong cong, hang cong
doi chieu » doc hieu, doi chi, ho chieu
tranh vat » trinh vat, tranh van, tran van
tranh va » tranh van, trang va, trinh va
cong dan » cong san, cong tan, huong dan
dan phan » doan phan, dan chan, van phan

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((doi chieu) or (theo chieu)) xanh - canh ((tranh vat) OR (tranh va)) nhung cong dan phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chieu) OR (theo chieu)) xanh - canh ((tranh vat) OR (tranh va)) nhung cong dan phan tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doi chieu) or (theo chieu)) xanh - canh ((tranh vat) OR (tranh va)) nhung cong dan phan tu".
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) or (theo chieu)) xanh - canh ((tranh vat) OR (tranh va)) nhung cong dan phan tu*.