Perhaps you should try some spelling variations:
bieu hien » dieu hien, dieu khien, bien phien
van hanh » van thanh, ban hanh, van anh
cua viet » ca viet, hoa viet, cua vat
thu bang » thu ban, thu hang, chu bang
thu nang » thi nang, thu hang, tho nang
mai hoi » mai khoi, dai hoi, lai hoi
cac xuc » cac nuoc, chat xuc, cac cuoc
tu sach » thu sach, su sach, te sach
vi cua » vai cua, di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ((thu nang) OR (thu bang)) mai hoi. bieu hien ((cac xuc) or (cam xuc)) van hanh vi cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((thu nang) OR (thu bang)) mai hoi. bieu hien ((cac xuc) OR (cam xuc)) van hanh vi cua viet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ((thu nang) OR (thu bang)) mai hoi. bieu hien ((cac xuc) or (cam xuc)) van hanh vi cua viet".
• Adding a wildcard symbol may retrieve word variants: tu sach ((thu nang) OR (thu bang)) mai hoi. bieu hien ((cac xuc) or (cam xuc)) van hanh vi cua viet*.