Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
nang xa » lang xa, nang ma, mang xa
va hang » van hang, va nang, va lang
va cam » va cham, va cac, va cao
va cua » va chua, via cua, ca cua
luc va » duc va, tuc va, loc va
ve cam » ve cham, ve cac, ve cai
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: thu sach y ((nang xa) or (nang x)) hoi. hieu ((ve cam) OR (va cam)) luc va hang va cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach y ((nang xa) OR (nang x)) hoi. hieu ((ve cam) OR (va cam)) luc va hang va cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach y ((nang xa) or (nang x)) hoi. hieu ((ve cam) OR (va cam)) luc va hang va cua te".
• Adding a wildcard symbol may retrieve word variants: thu sach y ((nang xa) or (nang x)) hoi. hieu ((ve cam) OR (va cam)) luc va hang va cua te*.