Perhaps you should try some spelling variations:
thanh de » thanh ve, thanh do, thanh le
lang van » dang van, tang van, hoang van
hanh de » hanh ve, hanh kem
sach ky » sach y, sach ty, sach kem
hieu ve » hieu va, hieu van
van hoi » van hoa, van hoc, van hoe
cuu tre » cua tre, cau tren, cau treo
ve cam » ve cham, ve cac, va cam
xuc va » duc va, tuc va, luc va
sac ky » cac ky, sai ky

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 ky) or (sac ky)) lang van hoi. hieu ve cam xuc va ((thanh de) OR (hanh de)) cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ky) OR (sac ky)) lang van hoi. hieu ve cam xuc va ((thanh de) OR (hanh de)) cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach ky) or (sac ky)) lang van hoi. hieu ve cam xuc va ((thanh de) OR (hanh de)) cuu tre".
• Adding a wildcard symbol may retrieve word variants: tu ((sach ky) or (sac ky)) lang van hoi. hieu ve cam xuc va ((thanh de) OR (hanh de)) cuu tre*.