Perhaps you should try some spelling variations:
nghien cac » nghiep cach, nghien cuu, nghiep bac
nghiep cay » nghiep chan, nghiep va, nghiep cua
cac thanh » bac thanh, cach nhanh, ban thanh
hinh hoc » sinh hoc, tin hoc, benh hoc
cong cac » cuong cac, cong tac, cong cau
cong coc » cong cuoc, cong co, cong uoc
van luan » van quan, van tuan, von luan
tu hinh » tu minh, tu hanh, su hinh
hoi van » hoi va, hoi dan, hai van
coc xa » hoc xa, cac xa, coc ha

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu hinh hoc tap, ((nghien cac) OR (nghiep cay)) cong cac thanh cong coc xa hoi van luan van~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu hinh hoc tap, ((nghien cac) OR (nghiep cay)) cong cac thanh cong coc xa hoi van luan van".
• Adding a wildcard symbol may retrieve word variants: tu hinh hoc tap, ((nghien cac) OR (nghiep cay)) cong cac thanh cong coc xa hoi van luan van*.