Perhaps you should try some spelling variations:
va hanh » van hanh, va thanh, ban hanh
hai cua » thai cua, dai cua, hoi cua
va danh » va dinh, va dan, dia danh
nang ma » tang ma, sang ma, nang cao
hieu ve » hieu va, hieu van
sach ky » sac ky, sach y, sach ty
ve cam » ve cham, ve cac, va cam
ma hoi » mai hoi, xa hoi, ma hoa
sai ky » sac ky
cua te » cua tu

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) or (sai ky)) nang ma hoi. hieu ve cam xuc ((va hanh) or (va danh)) hai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ky) OR (sai ky)) nang ma hoi. hieu ve cam xuc ((va hanh) OR (va danh)) hai cua te.
• Adding a wildcard symbol may retrieve word variants: tu ((sach ky) or (sai ky)) nang ma hoi. hieu ve cam xuc ((va hanh) or (va danh)) hai cua te*.