Perhaps you should try some spelling variations:
trinh nghien » trinh nghe, kinh nghiem, trinh thiet
khao nghiep » khao nghiem, khoi nghiep, thuat nghiep
hanh trinh » canh tranh, hanh chinh
nghien dai » nghiep dai, nhien dai, hien dai
lanh khao » lanh dao, lanh tho, lanh hai
nghiep va » nghiep vu
tu hanh » du hanh, lu hanh, thuc hanh
tu lanh » tu lenh, tu manh, tu anh
va hoc » van hoc

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( tu hanh trinh nghien dai hoc ) or ( tu lanh khao nghiep va hoc ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tu hanh trinh nghien dai hoc ) OR ( tu lanh khao nghiep va hoc )).
• Adding a wildcard symbol may retrieve word variants: (( tu hanh trinh nghien dai hoc ) or ( tu lanh khao nghiep va hoc ))*.