Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
canh trinh » canh tranh, hanh trinh, canh tinh
doi chieu » doi chi, mot chieu, thi chieu
ho chieu » theo chieu, hoc thieu, mot chieu
doc hieu » toc thieu, hoc thieu, hoc hien
trinh va » trinh van, trinh vat, trinh ve
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: ((ho chieu) or (((doi chieu) or (doc hieu)))) xanh - canh trinh va nhung cong dan phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (((doi chieu) OR (doc hieu)))) xanh - canh trinh va nhung cong dan phan tu.
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (((doi chieu) or (doc hieu)))) xanh - canh trinh va nhung cong dan phan tu*.