Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, nhung don
canh sinh » canh binh, tinh sinh, dang sinh
canh tinh » hanh tinh, manh tinh, canh tranh
hang cong » dang cong, hang nong, bang cong
chu tinh » chau tinh, chua tinh, cuu tinh
dan phan » doan phan, dan chan, van phan
phan dau » phan tu, hang dau
ho chu » hoi chu, cho chu, ho chua

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

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