Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
hanh cac » hanh cat, nhanh cay, hanh va
hang cac » hang ca, hang cau, bang cac
bo sach » co sach, hoc sach
te sach » toc sach
nang xa » nang x, lang xa, nang ma
nam xuc » cam xuc, nam xua, nam thuc
xuc van » duc van, luc van, vuc van

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((bo sach) or (te sach)) ky nang xa hoi. hieu van nam xuc van ((hanh cac) OR (hang cac)) cua vat~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((bo sach) OR (te sach)) ky nang xa hoi. hieu van nam xuc van ((hanh cac) OR (hang cac)) cua vat.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((bo sach) or (te sach)) ky nang xa hoi. hieu van nam xuc van ((hanh cac) OR (hang cac)) cua vat".
• Adding a wildcard symbol may retrieve word variants: ((bo sach) or (te sach)) ky nang xa hoi. hieu van nam xuc van ((hanh cac) OR (hang cac)) cua vat*.