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 sinh » canh tinh, canh binh, tinh sinh
doan phan » doanh phan, toan phan, dan phan
theo chu » theo chieu, cho chu, chao chu
phan tap » phan lap, han tap, pha tap

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

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