Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
ky danh » ky anh, ky dang
danh ma » anh ma, danh ca, hanh ma
va danh » va dinh, va dan, va hanh
ma hoi » mai hoi, xa hoi, ma hoa
ve cam » ve cham, ve cac, ve cai
va cam » va cham, va cac, va cao
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 ky danh ma hoi. hieu ((ve cam) or (va cam)) xuc ((va danh) or (van hanh)) vi cua vat~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky danh ma hoi. hieu ((ve cam) OR (va cam)) xuc ((va danh) OR (van hanh)) vi cua vat.
• Adding a wildcard symbol may retrieve word variants: tu sach ky danh ma hoi. hieu ((ve cam) or (va cam)) xuc ((va danh) or (van hanh)) vi cua vat*.