Perhaps you should try some spelling variations:
thanh dong » thanh duong, thanh cong, hanh dong
luc thanh » duc thanh, luu thanh, tuc thanh
mach hoc » cach hoc, dich hoc, anh hoc
cuu dong » cuu tong, cuu long, luu dong
cuu cong » cua cong, thu cong, cac cong
dong hoc » dong co, dong luc
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 dong) OR (cuu cong)) luc thanh dong hoc xa hoi danh van tuan~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu mach hoc tap, nghien ((cuu dong) OR (cuu cong)) luc thanh dong hoc xa hoi danh van tuan".
• Adding a wildcard symbol may retrieve word variants: tu mach hoc tap, nghien ((cuu dong) OR (cuu cong)) luc thanh dong hoc xa hoi danh van tuan*.