Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
nhanh mang » nhanh lang, nhanh quang, nhanh thang
theo chuc » theo chu, tho chu, treo chu
hanh mang » hanh trang, nhanh lang, thanh hang
cua nhung » va nhung
cong van » cong vang, cong san, song van
phan dau » phan tu
hang dau » hang va, hang tai

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 chuc nang - ((hanh mang) OR (nhanh mang)) cua nhung cong van ((phan dau) OR (hang dau))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chuc nang - ((hanh mang) or (nhanh mang)) cua nhung cong van ((phan dau) OR (hang dau))~".
• Adding a wildcard symbol may retrieve word variants: theo chuc nang - ((hanh mang) or (nhanh mang)) cua nhung cong van ((phan dau) OR (hang dau))*.