Perhaps you should try some spelling variations:
thanh dung » thanh duong, thanh tung, thanh hung
luc thanh » duc thanh, luu thanh, tuc thanh
mach hoc » cach hoc, dich hoc, anh hoc
cuu tong » cuu tinh, huu tung, cuu nang
cuu cong » cua cong, thu cong, cac cong
dung hoc » dong hoc, dung thuoc, trung hoc
hoi danh » hop danh, hoi dan, hoc danh
danh van » doanh van, dang van, dinh van
van tuan » van quan, van ban, anh tuan
tu mach » tu cach, tu manh, tu hach
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: tu mach hoc tap, nghien ((cuu tong) or (cuu cong)) luc thanh dung hoc xa hoi danh van tuan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu mach hoc tap, nghien ((cuu tong) OR (cuu cong)) luc thanh dung hoc xa hoi danh van tuan.
• Adding a wildcard symbol may retrieve word variants: tu mach hoc tap, nghien ((cuu tong) or (cuu cong)) luc thanh dung hoc xa hoi danh van tuan*.