Perhaps you should try some spelling variations:
thanh lap » phan lap, thanh hai, thanh van
tu sach » thu sach, su sach, te sach
sang ma » tang ma, nang ma, sang tao
ve pham » vi pham, ve phan, ve phat
cua tre » cua te, cuu tre, cua triet
y sang » _ sang, duy sang
ma hoi » mai hoi, xa hoi, ma hoa
v pham » vi pham, d pham

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 sang ma hoi. hieu ((ve pham) OR (v pham)) duc va ((thanh lap) or (thanh san)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y sang ma hoi. hieu ((ve pham) OR (v pham)) duc va ((thanh lap) OR (thanh san)) cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach y sang ma hoi. hieu ((ve pham) OR (v pham)) duc va ((thanh lap) or (thanh san)) cua tre".
• Adding a wildcard symbol may retrieve word variants: tu sach y sang ma hoi. hieu ((ve pham) OR (v pham)) duc va ((thanh lap) or (thanh san)) cua tre*.