Perhaps you should try some spelling variations:
va phuong » va thuong, cac phuong
doc sach » hoc sach, toc sach, nuoc sach
va huong » va thuong, va tuong, ban huong
doi cuu » doi cua, doi cuoc
cuu tre » cua tre, cau tren, cau treo
sach ky » sac ky, sach y, sach ty
hieu va » lieu va, hieu qua
lang xa » lang ha, dang xay, lang van
ky lang » ky nang, ky dang, ky tang
cac tu » cac thu, cach tu, tac tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc sach ky lang xa hoi. hieu va ((cac tu) or (cac du)) ((va huong) OR (va phuong)) doi cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc sach ky lang xa hoi. hieu va ((cac tu) OR (cac du)) ((va huong) OR (va phuong)) doi cuu tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc sach ky lang xa hoi. hieu va ((cac tu) or (cac du)) ((va huong) OR (va phuong)) doi cuu tre*".