Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
manh hai » lanh hai, minh hai, thanh hai
danh hai » dang hai, lanh hai, danh hau
sach lo » sach dao, sach doi, sach hoi
cau luc » cau truc, cau phuc
hieu va » hieu qua
lang xa » lang ha, dang xay, lang van
lo lang » o lang, so lang, le lang
luc va » duc va, tuc va, loc va
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 lo lang xa hoi. ((lieu va) or (hieu va)) cau luc va ((danh hai) OR (manh hai)) cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach lo lang xa hoi. ((lieu va) OR (hieu va)) cau luc va ((danh hai) OR (manh hai)) cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach lo lang xa hoi. ((lieu va) or (hieu va)) cau luc va ((danh hai) OR (manh hai)) cua te".
• Adding a wildcard symbol may retrieve word variants: thu sach lo lang xa hoi. ((lieu va) or (hieu va)) cau luc va ((danh hai) OR (manh hai)) cua te*.