Perhaps you should try some spelling variations:
chong hoc » chung hoc, chong doc, thong hoc
thu mach » thu sach, thuat mach, thu hoach
mach hoc » cach hoc, dich hoc, anh hoc
hoc phan » hoc dan
dap nhan » dap nha, dac nhan, dam nhan
nhan van » nhan dan, nhan va, phan van
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: thu mach hoc tap, nghien cuu mo ((hoc phan) OR (hoc pho)) chong hoc xa hoi dap nhan van~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu mach hoc tap, nghien cuu mo ((hoc phan) OR (hoc pho)) chong hoc xa hoi dap nhan van".
• Adding a wildcard symbol may retrieve word variants: thu mach hoc tap, nghien cuu mo ((hoc phan) OR (hoc pho)) chong hoc xa hoi dap nhan van*.