Perhaps you should try some spelling variations:
bieu hien » dieu hien, dieu khien, bien phien
tu cach » tu cac
danh vi » hanh vi, dinh vi, danh di
xa danh » va danh, dia danh, nam danh
cac tac » cac toc, cac bac, cac dac
cac tuc » cac toc, cac tu, cac nuoc
su sach » so sach, vu sach
lua tre » cua tre, luy tre, dua tren
vi lua » vi luu
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu cach) or (su sach)) ky nang x hoi. bieu hien ((cac tuc) OR (cac tac)) xa danh vi lua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu cach) OR (su sach)) ky nang x hoi. bieu hien ((cac tuc) OR (cac tac)) xa danh vi lua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu cach) or (su sach)) ky nang x hoi. bieu hien ((cac tuc) OR (cac tac)) xa danh vi lua tre".
• Adding a wildcard symbol may retrieve word variants: ((tu cach) or (su sach)) ky nang x hoi. bieu hien ((cac tuc) OR (cac tac)) xa danh vi lua tre*.