Perhaps you should try some spelling variations:
tham nhung » thi nhung
nhung cong » dung cong, thong cong, hang cong
tieu sang » chieu sang, tieu dung, tiem nang
hanh hang » thanh hang, hang hang, hanh han
hang tham » hang pham, hong tham, hoang thai
cong san » cong tac
toan tai » toan tap, doanh tai, toan cao
toan ban » van ban

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 - hanh hang tham nhung cong san ((toan tai) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu sang - hanh hang tham nhung cong san ((toan tai) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: theo tieu sang - hanh hang tham nhung cong san ((toan tai) or (toan ban))*.