Perhaps you should try some spelling variations:
phap duy » phap day, pham duy, phan duy
doc sac » doc sach, dac sac, hoc sach
dai cuu » dai cua, dai huu
va danh » va dinh, va dan, dia danh
va hanh » van hanh, va thanh, ban hanh
va phap » va phat, ban phap
lang xa » dang xay, lang van
lang ha » long ha
cuu tre » cua tre, cau tren, cau treo
sac ky » cac ky, sai ky

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc sac ky ((lang xa) or (lang ha)) hoi. lieu va phap duy ((va hanh) or (va danh)) dai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc sac ky ((lang xa) OR (lang ha)) hoi. lieu va phap duy ((va hanh) OR (va danh)) dai cuu tre.
• Adding a wildcard symbol may retrieve word variants: doc sac ky ((lang xa) or (lang ha)) hoi. lieu va phap duy ((va hanh) or (va danh)) dai cuu tre*.