Perhaps you should try some spelling variations:
te sach » toc sach
viet su » viet suu, viet sau, viet tu
van anh » van thanh, tuan anh, van minh
cao suc » cao su, cao duc
cao xuc » cam xuc, cao duc, chat xuc
su hien » su kien, su tien, thu hien
hieu va » lieu va, hieu qua
va nang » van nang, da nang, cam nang
vu nang » vuc nang, vu dang, v nang

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 ((vu nang) or (va nang)) xa hoi. hieu va ((cao xuc) OR (cao suc)) van anh viet su hien~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((vu nang) OR (va nang)) xa hoi. hieu va ((cao xuc) OR (cao suc)) van anh viet su hien*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((vu nang) or (va nang)) xa hoi. hieu va ((cao xuc) OR (cao suc)) van anh viet su hien*".