Perhaps you should try some spelling variations:
thanh lap » thanh san, phan lap, thanh hai
hieu van » hieu va, thien van, lieu va
van pham » san pham, van phan, van phat
pham duy » pham duc
cua tre » cuu tre, cua triet, dua tren
duy gia » duy gian, duc gia, quy gia
te sach » toc sach
tang ma » mang may, tang van
sang ma » nang ma, sang tao, mang may
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 y ((sang ma) or (tang ma)) hoi. hieu van 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 y ((sang ma) OR (tang ma)) hoi. hieu van pham duy gia thanh lap ((cua tre) OR (cua te)).
• Adding a wildcard symbol may retrieve word variants: te sach y ((sang ma) or (tang ma)) hoi. hieu van pham duy gia thanh lap ((cua tre) or (cua te))*.