Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, nhung don
canh manh » lanh manh, canh tranh, cach mang
hang cong » dang cong, hang nong, bang cong
doc hieu » hoc thieu, hoc hien
manh cua » doanh cua, ban cua
tan phan » toan phan, than phan, van phan
phan cac » nhan cach, phan dau, phan lap

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) OR (toc thieu)) xanh - canh manh cua ((nhung cong) or (hang cong)) tan phan cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doc hieu) OR (toc thieu)) xanh - canh manh cua ((nhung cong) OR (hang cong)) tan phan cac.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doc hieu) OR (toc thieu)) xanh - canh manh cua ((nhung cong) or (hang cong)) tan phan cac".
• Adding a wildcard symbol may retrieve word variants: ((doc hieu) OR (toc thieu)) xanh - canh manh cua ((nhung cong) or (hang cong)) tan phan cac*.