Perhaps you should try some spelling variations:
so sach » so sanh, bo sach, co sach
nang xa » nang x, lang xa, nang ma
lang ha » long ha
hieu ve » hieu va, hieu van
va hanh » van hanh, va thanh, va danh
vai cua » hai cua, lai cua, bai cua
ve cam » ve cham, ve cac, va cam
xuc va » duc va, tuc va, luc va

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: so sach y ((nang xa) or (lang ha)) hoi. hieu ve cam xuc va hanh ((vai cua) OR (dai cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach y ((nang xa) OR (lang ha)) hoi. hieu ve cam xuc va hanh ((vai cua) OR (dai cua)) tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach y ((nang xa) or (lang ha)) hoi. hieu ve cam xuc va hanh ((vai cua) OR (dai cua)) tre".
• Adding a wildcard symbol may retrieve word variants: so sach y ((nang xa) or (lang ha)) hoi. hieu ve cam xuc va hanh ((vai cua) OR (dai cua)) tre*.