Perhaps you should try some spelling variations:
phan tri » phan thi, thanh tri, chan troi
sach ty » sach tu, sach thu, xach tay
lang xa » lang ha, dang xay, lang van
va phan » van phan, va phat, va phap
cua tre » cua te, cuu tre, cua triet
va cam » va cham, va cac, va cai
va cao » va cac, va co, va dao

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

• Performing a fuzzy search may retrieve terms with similar spellings: te ((sach ty) or (sach y)) lang xa hoi. lieu ((va cam) OR (va cao)) duc va phan tri cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach ty) OR (sach y)) lang xa hoi. lieu ((va cam) OR (va cao)) duc va phan tri cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sach ty) or (sach y)) lang xa hoi. lieu ((va cam) OR (va cao)) duc va phan tri cua tre".
• Adding a wildcard symbol may retrieve word variants: te ((sach ty) or (sach y)) lang xa hoi. lieu ((va cam) OR (va cao)) duc va phan tri cua tre*.