Perhaps you should try some spelling variations:
sach duoc » sach nuoc, sach dung, sinh duoc
thanh lap » thanh san, phan lap, thanh hai
pham duy » pham duc
sach dao » lanh dao
cua tre » cuu tre, cua triet, dua tren
duy gia » duy gian, duc gia, quy gia
hieu ve » hieu va, hieu van
ve pham » vi pham, v pham, ve phan
sang xa » song xa, lang xa, sang ma
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: te ((sach duoc) OR (sach dao)) sang xa hoi. hieu ve pham duy gia thanh lap ((cua tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach duoc) OR (sach dao)) sang xa hoi. hieu ve pham duy gia thanh lap ((cua tre) OR (cua te))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sach duoc) OR (sach dao)) sang xa hoi. hieu ve pham duy gia thanh lap ((cua tre) or (cua te))*".