Perhaps you should try some spelling variations:
nhung cong » dung cong, hang cong, nhung don
thong cong » trong cong, tong cong, thong thong
hoc thieu » toc thieu, hoc hien
canh manh » lanh manh, canh tranh, cach mang
ho chieu » theo chieu, doi chieu, mot chieu
manh cua » doanh cua, ban cua
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 (hoc thieu)) tinh - canh manh cua ((nhung cong) or (thong cong)) dan phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (hoc thieu)) tinh - canh manh cua ((nhung cong) OR (thong cong)) dan phan tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) OR (hoc thieu)) tinh - canh manh cua ((nhung cong) or (thong cong)) dan phan tu".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) OR (hoc thieu)) tinh - canh manh cua ((nhung cong) or (thong cong)) dan phan tu*.