Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
van chat » cao chat
chat vuc » chat xuc, chat va, chat huu
te sach » toc sach
su sach » vu sach
so sach » so sanh, bo sach, co sach
nang xa » nang x, lang xa, nang ma
vuc van » duc van, luc van, thuc van
van han » van hanh, van phan, van nhan
han tai » hang tai, nhan tai, van tai
tai va » thai va, mai va, tri va
thiet » thieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((te sach) or (((su sach) OR (so sach)))) ky nang xa hoi. hieu van chat vuc van han tai va thiet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (((su sach) OR (so sach)))) ky nang xa hoi. hieu van chat vuc van han tai va thiet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te sach) or (((su sach) OR (so sach)))) ky nang xa hoi. hieu van chat vuc van han tai va thiet".
• Adding a wildcard symbol may retrieve word variants: ((te sach) or (((su sach) OR (so sach)))) ky nang xa hoi. hieu van chat vuc van han tai va thiet*.