Perhaps you should try some spelling variations:
nang thuong » hang thuong, nang truong, dang thuong
nghien thu » nghiem thuc, nghiep thuc, nghien cuu
thuong hoc » truong hoc, tuong hoc, thuong ho
cong cao » cong cau, cong cac, cong co
cao nang » cao dang, cam nang, cao tang
cua pham » cua phap, cua ham, cua phan
san hoc » van hoc, dan hoc, sinh hoc
hoi cua » hoi chuc
san ho » san cho, san co, sin ho
hoc xa » hoc ma

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuat ((san hoc) OR (san ho)) tap, nghien thu cong cao nang thuong hoc xa hoi cua pham van~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat ((san hoc) OR (san ho)) tap, nghien thu cong cao nang thuong hoc xa hoi cua pham van".
• Adding a wildcard symbol may retrieve word variants: thuat ((san hoc) OR (san ho)) tap, nghien thu cong cao nang thuong hoc xa hoi cua pham van*.