Perhaps you should try some spelling variations:
cua viet » ca viet, hoa viet, cua vat
ban hanh » ban hang
thi nang » thi cong, ki nang, thi hanh
thu nang » thu hang, thu bang, tho nang
mai hoi » mai khoi, dai hoi, lai hoi
hieu va » lieu va, hieu qua
cac xuc » cam xuc, cac nuoc, chat xuc
va hanh » van hanh, va thanh, va danh
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 (thi nang)) mai hoi. hieu va cac xuc ((va hanh) or (ban hanh)) vi cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((thu nang) OR (thi nang)) mai hoi. hieu va cac xuc ((va hanh) OR (ban hanh)) vi cua viet.
• Adding a wildcard symbol may retrieve word variants: tu sach ((thu nang) or (thi nang)) mai hoi. hieu va cac xuc ((va hanh) or (ban hanh)) vi cua viet*.