Perhaps you should try some spelling variations:
hieu hien » bieu hien, dieu hien, chieu chien
hien cac » thien cac, vien cac, hieu cac
hanh tai » thanh tai, hang tai, han tai
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
hanh va » hanh vi
cac le » cach le, cac he, mac le
cua te » cua tu
le va » le van, te va, ly va

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ky nang xa hoi. hieu hien cac le va ((((hanh va) or (hang va))) or (hanh tai)) cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky nang xa hoi. hieu hien cac le va ((((hanh va) OR (hang va))) OR (hanh tai)) cua te.
• Adding a wildcard symbol may retrieve word variants: su sach ky nang xa hoi. hieu hien cac le va ((((hanh va) or (hang va))) or (hanh tai)) cua te*.