Perhaps you should try some spelling variations:
hoc khanh » hoc nhanh, hoc thanh, hoc hanh
khanh hoa » thanh hoa, hang hoa
thanh van » thanh san, thanh toan, thanh phan
cuu nang » chuc nang, cam nang, cuu van
nang hoc » nang doc, nang luc, dong hoc
va thanh » gia thanh, ban thanh, va tinh
anh hoc » sinh hoc, benh hoc, hinh hoc
tu anh » tu hanh, tu manh, thu anh
ma hoi » mai hoi, ma hoa, me hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu anh hoc tap, nghien cuu nang hoc khanh hoa hoc ((ma hoi) or (xa hoi)) va thanh van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu anh hoc tap, nghien cuu nang hoc khanh hoa hoc ((ma hoi) OR (xa hoi)) va thanh van.
• Adding a wildcard symbol may retrieve word variants: tu anh hoc tap, nghien cuu nang hoc khanh hoa hoc ((ma hoi) or (xa hoi)) va thanh van*.