Perhaps you should try some spelling variations:
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
tu sac » tu san, tu bac, tu lac
vi cua » vai cua, di cua
cua te » cua tu
x hoi » xa hoi, o hoi, x ho

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

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