Perhaps you should try some spelling variations:
sinh thai » dinh thi
hinh thai » tinh thai, dinh thi, chinh tai
te sach » toc sach
qua cac » cua cac
ang xa » lang xa, mang xa, dang xay
cac su » cach su, cac sau, cac du
cua tu » cua tuc, cua su, cua cu
su va » su van, tu va

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 ang xa hoi. hieu qua cac su va ((hinh thai) OR (sinh thai)) cua tu~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y ang xa hoi. hieu qua cac su va ((hinh thai) OR (sinh thai)) cua tu".
• Adding a wildcard symbol may retrieve word variants: te sach y ang xa hoi. hieu qua cac su va ((hinh thai) OR (sinh thai)) cua tu*.