Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
tu sach » thu sach, su sach, te sach
nang xa » lang xa, nang ma, mang xa
hieu va » lieu va, hieu qua
va hanh » va thanh, va danh, ban hanh
vai cua » dai cua, hai cua, lai cua
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: tu sach y ((nang xa) or (nang x)) 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: tu sach y ((nang xa) OR (nang x)) hoi. hieu va cam xuc ((va hanh) OR (van hanh)) vai cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach y ((nang xa) or (nang x)) hoi. hieu va cam xuc ((va hanh) OR (van hanh)) vai cua te".
• Adding a wildcard symbol may retrieve word variants: tu sach y ((nang xa) or (nang x)) hoi. hieu va cam xuc ((va hanh) OR (van hanh)) vai cua te*.