Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
nhung cong » dung cong, thong cong, hang cong
hoc thieu » toc thieu, hoc hien
canh tinh » hanh tinh, manh tinh, canh tranh
man tinh » may tinh, ban tinh, quan tinh
tac phan » tai phan, tac phat, cac phan
tac pham » thuc pham, san pham

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