Perhaps you should try some spelling variations:
nhanh mang » nhanh lang, hanh mang, nhanh quang
hanh trinh » canh tranh, hanh chinh
theo chuc » theo chu, tho chu, treo chu
cua dang » cua ban
cong ban » cong bang, cong san, cong tan
ban phan » ban phap, van phan, ban than
phan cau » phan dau, phan cac, phan tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chuc nang - ((nhanh mang) or (hanh trinh)) ((cua dang) or (cua cong)) cong ban phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chuc nang - ((nhanh mang) OR (hanh trinh)) ((cua dang) OR (cua cong)) cong ban phan cau.
• Adding a wildcard symbol may retrieve word variants: theo chuc nang - ((nhanh mang) or (hanh trinh)) ((cua dang) or (cua cong)) cong ban phan cau*.