Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hanh tang » hanh trang, anh tang, hanh mang
cong san » cong tac
toan cao » toan ban
toan tap » toan ban
he xanh » heo xanh, hoc xanh
tang va » trang va, tang van, thang va
cho he » cho thue

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

• Performing a fuzzy search may retrieve terms with similar spellings: cho he xanh - hanh tang va nhung cong san ((toan cao) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: cho he xanh - hanh tang va nhung cong san ((toan cao) OR (toan tap)).
• Adding a wildcard symbol may retrieve word variants: cho he xanh - hanh tang va nhung cong san ((toan cao) or (toan tap))*.