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