Perhaps you should try some spelling variations:
phap thang » phap tang, phap thong, pham thang
sach phap » sach phat, sach nha, sach tham
thang xa » thang va, thong xa, trang xa
hieu van » hieu va, thien van, lieu va
cau thuc » cau truc, cuu thuc, can thuc
tu sach » thu sach, su sach, te sach
van cau » van dau, van hau, van chat
dinh vi » dinh ve, dinh viet, dinh tri
cuu tre » cua tre, cau tren, cau treo

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach phap thang xa hoi. hieu van cau thuc vat ((dinh vi) or (hanh vi)) cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach phap thang xa hoi. hieu van cau thuc vat ((dinh vi) OR (hanh vi)) cuu tre.
• Adding a wildcard symbol may retrieve word variants: tu sach phap thang xa hoi. hieu van cau thuc vat ((dinh vi) or (hanh vi)) cuu tre*.