Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
van nhan » van phan, van thanh, danh nhan
su sach » so sach
vu sach » vu bach, vu khach
nang xa » nang x, lang xa, nang ma
van cam » van nam, van lam, van cau
van han » van hanh, van phan, van hoan
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: ((su sach) or (vu sach)) ky nang xa hoi. hieu van cam xuc ((van han) OR (van nhan)) tri cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (vu sach)) ky nang xa hoi. hieu van cam xuc ((van han) OR (van nhan)) tri cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) or (vu sach)) ky nang xa hoi. hieu van cam xuc ((van han) OR (van nhan)) tri cua te".
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (vu sach)) ky nang xa hoi. hieu van cam xuc ((van han) OR (van nhan)) tri cua te*.