Perhaps you should try some spelling variations:
nhung cong » thong cong, hang cong, nhung don
tieu xanh » tieu danh, chieu xanh, dieu hanh
hanh mang » nhanh mang, hanh trang, nhanh lang
dung cong » dung trong
toan tai » toan tap, doanh tai, toan cao
toan ban » van ban
mang va » mang vua, hang va, bang va

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