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
mach hoc » cach hoc, dich hoc, anh hoc
cuu nang » chuc nang, cam nang, cuu van
nang hoc » nang doc, nang luc, dong hoc
phan van » pham van, luan van, tran van
tu mach » tu cach, tu manh, tu hach
hoa va » hoa van, hoa xa, hoa vo

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu mach hoc tap, nghien cuu nang hoc khanh hoa hoc ma hoa va ((phan van) OR (thanh van))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu mach hoc tap, nghien cuu nang hoc khanh hoa hoc ma hoa va ((phan van) OR (thanh van))".
• Adding a wildcard symbol may retrieve word variants: tu mach hoc tap, nghien cuu nang hoc khanh hoa hoc ma hoa va ((phan van) OR (thanh van))*.