Perhaps you should try some spelling variations:
hang khoa » dung khoa
tinh hoc » sinh hoc, tin hoc, hinh hoc
hoc hang » hoc hanh, hoc bang, hoc tang
khoa hoc » hoa hoc
nhan dan » phan dau, gian dan, nhan tai
te tinh » tue tinh, tre tinh, ve tinh
cuu mon » cuu mo, cuu cong, cuu tong
cuu mot » cua mot, cuu mo, huu mot
hoc xa » hoc ma
hoi ca » hoi cua, hoi cac, hoi cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: te tinh hoc tap, nghien ((cuu mon) or (cuu mot)) hoc hang khoa hoc xa hoi ca nhan dan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te tinh hoc tap, nghien ((cuu mon) OR (cuu mot)) hoc hang khoa hoc xa hoi ca nhan dan.
• Adding a wildcard symbol may retrieve word variants: te tinh hoc tap, nghien ((cuu mon) or (cuu mot)) hoc hang khoa hoc xa hoi ca nhan dan*.