Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
thuc xanh » thuc thanh, thuc dan, thuy anh
hanh tang » hanh trang, anh tang, hanh mang
bang cong » dang cong, bang song, hang cong
tang cua » mang cua, hang cua, tang luan
dan toan » van toan, dan than, manh toan
toan cao » toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: choi ((thuc xanh) OR (thuc hanh)) - hanh tang cua ((bang cong) or (thong cong)) dan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: choi ((thuc xanh) OR (thuc hanh)) - hanh tang cua ((bang cong) OR (thong cong)) dan toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "choi ((thuc xanh) OR (thuc hanh)) - hanh tang cua ((bang cong) or (thong cong)) dan toan cao".
• Adding a wildcard symbol may retrieve word variants: choi ((thuc xanh) OR (thuc hanh)) - hanh tang cua ((bang cong) or (thong cong)) dan toan cao*.