Perhaps you should try some spelling variations:
thien van » thi van
thuc dan » thuc hanh, hoc dan, thuc vat
cuu thuc » cuu tac
xang xa » lang xa, mang xa, ang xa
van cuu » van cau, van chu, van cu
sach ty » sach tu, sach thu, xach tay
hanh te » hanh tu, hanh ve, hanh he
hanh de » hanh ve, hanh kem
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: thu ((sach ty) OR (sach y)) xang xa hoi. thien van cuu thuc dan ((hanh te) or (hanh de)) cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu ((sach ty) OR (sach y)) xang xa hoi. thien van cuu thuc dan ((hanh te) OR (hanh de)) cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu ((sach ty) OR (sach y)) xang xa hoi. thien van cuu thuc dan ((hanh te) or (hanh de)) cua te".
• Adding a wildcard symbol may retrieve word variants: thu ((sach ty) OR (sach y)) xang xa hoi. thien van cuu thuc dan ((hanh te) or (hanh de)) cua te*.