Perhaps you should try some spelling variations:
tieu sang » chieu sang, tieu dung, tiem nang
nhan dang » nhan dan, phan dang, tran dang
cua nhung » va nhung
dang cua » dung cua, dong cua, mang cua
nong dan » cong dan, nong san, nguong dan
cong san » cong tac
toan cau » 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: theo tieu sang - nhan dang cua nhung ((nong dan) or (cong san)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu sang - nhan dang cua nhung ((nong dan) OR (cong san)) toan cau.
• Adding a wildcard symbol may retrieve word variants: theo tieu sang - nhan dang cua nhung ((nong dan) or (cong san)) toan cau*.