Perhaps you should try some spelling variations:
khong hoc » khung hoc, thong hoc, khong thuoc
mach hoc » cach hoc, dich hoc, anh hoc
cuu cong » cua cong, thu cong, cac cong
hoc phan » hoc dan
phap van » pham van, phan van, phap han
te mach » ke mach, te sach, tim mach
va phap » va phat, ban phap
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: te mach hoc tap, nghien cuu cong ((hoc phan) or (hoc pho)) khong hoc xa hoi va phap van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te mach hoc tap, nghien cuu cong ((hoc phan) OR (hoc pho)) khong hoc xa hoi va phap van.
• Adding a wildcard symbol may retrieve word variants: te mach hoc tap, nghien cuu cong ((hoc phan) or (hoc pho)) khong hoc xa hoi va phap van*.