Perhaps you should try some spelling variations:
thanh hang » thanh hoang, thanh thang, tranh hang
cuu tuong » cuu thuong, cuu tong, cuu phuong
tuong hoc » truong hoc, tuong ho, duong hoc
hoc thanh » hoc nhanh, hoan thanh, hoc phan
sach hoc » sach hoi, mach hoc, sach duoc
cach hoc » cach thuc, cach thoi, dich hoc
hoc danh » hoc dan, hoc anh, hoc hanh
danh hoa » thanh hoa, khanh hoa, nganh hoa
hang tai » hang va, dung tai
hoc xa » hoc ma
xa hoc » xa hoi, va hoc, xa hoa

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuat ((sach hoc) OR (cach hoc)) tap, nghien cuu tuong hoc danh hoa hoc xa hoc thanh hang tai~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat ((sach hoc) OR (cach hoc)) tap, nghien cuu tuong hoc danh hoa hoc xa hoc thanh hang tai".
• Adding a wildcard symbol may retrieve word variants: thuat ((sach hoc) OR (cach hoc)) tap, nghien cuu tuong hoc danh hoa hoc xa hoc thanh hang tai*.