Perhaps you should try some spelling variations:
hoach hoc » hoach hoi, hoach hoa, cach hoc
cuu dong » cuu cong, cuu tong, cuu long
dong hoc » dong co, dong luc
hoc hanh » hoc nhanh, hoc thanh, hoc anh
hanh hoa » thanh hoa, khanh hoa, hang hoa
hoi danh » hop danh, hoc danh, hoi dang
hang tai » hang va, dung tai
hoi dan » hoa dan, hoc dan, hoi dap
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: thu hoach hoc tap, nghien cuu dong hoc hanh hoa hoc xa ((hoi danh) OR (hoi dan)) hang tai~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu hoach hoc tap, nghien cuu dong hoc hanh hoa hoc xa ((hoi danh) OR (hoi dan)) hang tai".
• Adding a wildcard symbol may retrieve word variants: thu hoach hoc tap, nghien cuu dong hoc hanh hoa hoc xa ((hoi danh) OR (hoi dan)) hang tai*.