Perhaps you should try some spelling variations:
lang van » tang van, hoang van, giang van
dang van » hoang van, hang va
van hanh » van thanh, ban hanh, van anh
su sach » so sach, vu sach
va hanh » va thanh, va danh, ban hanh
vai cua » dai cua, hai cua, lai cua
hieu va » lieu va, hieu qua
sach ty » sach y, sach tu, sach thu
va cam » va cham, va cac, va cao
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: su sach ty ((lang van) or (dang van)) hoi. hieu va cam xuc ((va hanh) or (van hanh)) vai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ty ((lang van) OR (dang van)) hoi. hieu va cam xuc ((va hanh) OR (van hanh)) vai cua te.
• Adding a wildcard symbol may retrieve word variants: su sach ty ((lang van) or (dang van)) hoi. hieu va cam xuc ((va hanh) or (van hanh)) vai cua te*.