Perhaps you should try some spelling variations:
thien van » thi van
thu sach » tu sach, thuat sach, thuoc sach
truc dan » thuc dan, tuc dan, truc ban
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
van cau » van dau, van hau, van chat
hanh tu » anh tu, danh tu
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 ky nang xa hoi. thien van cau truc dan ((hanh tu) or (hanh de)) cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ky nang xa hoi. thien van cau truc dan ((hanh tu) OR (hanh de)) cua te.
• Adding a wildcard symbol may retrieve word variants: thu sach ky nang xa hoi. thien van cau truc dan ((hanh tu) or (hanh de)) cua te*.