Perhaps you should try some spelling variations:
tru nang » tri nang, truc nano, thi nang
tra nang » thi nang, kha nang, da nang
hieu van » hieu va, thien van, lieu va
ban hanh » ban hang
tu sach » thu sach, su sach, te sach
van cam » van nam, van lam, van cau
cam cuc » cam xuc, cham cuu, pham cuc
cuc ban » cua ban, cac ban, cuu ban
hanh di » hanh vi, hanh de, hang di
cua tre » cua te, cuu tre, cua triet
di cua » dai cua, doi cua, de cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ((tru nang) OR (tra nang)) xa hoi. hieu van cam cuc ban hanh di cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ((tru nang) OR (tra nang)) xa hoi. hieu van cam cuc ban hanh di cua tre".
• Adding a wildcard symbol may retrieve word variants: tu sach ((tru nang) OR (tra nang)) xa hoi. hieu van cam cuc ban hanh di cua tre*.