Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
nhanh mang » nhanh lang, nhanh quang, nhanh thang
tieu tinh » trieu tinh, tieu trinh, lieu tinh
hanh mang » hanh trang, nhanh lang, thanh hang
cua nhung » va nhung
cong san » cong tac
toan tai » toan tap, doanh tai, toan ban

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

• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu tinh - ((hanh mang) OR (nhanh mang)) cua nhung cong san ((toan tai) OR (van ban))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu tinh - ((hanh mang) OR (nhanh mang)) cua nhung cong san ((toan tai) or (van ban))~".
• Adding a wildcard symbol may retrieve word variants: theo tieu tinh - ((hanh mang) OR (nhanh mang)) cua nhung cong san ((toan tai) or (van ban))*.