Perhaps you should try some spelling variations:
thu sach » thuat sach, thuoc sach, thu hoach
tu sach » su sach, te sach, tu cach
va doan » va doanh, van doan, va dan
vu cham » va cham, vu kham, tu cham
ve cham » va cham, ve chat, ve chim
lang xa » lang ha, dang xay, lang van
cua tre » cua te, cuu tre, cua triet
y lang » o lang, _ lang, tay lang
luc va » duc va, tuc va, loc va
va cua » va chua, via cua, ca cua

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) OR (thu sach)) y lang xa hoi. hieu ((ve cham) or (vu cham)) luc va doan va cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (thu sach)) y lang xa hoi. hieu ((ve cham) OR (vu cham)) luc va doan va cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) OR (thu sach)) y lang xa hoi. hieu ((ve cham) or (vu cham)) luc va doan va cua tre*".