Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
tinh va » tich va, trinh van, trinh vat
va tinh » may tinh
cau luc » cau truc, cau phuc
van cau » van dau, van hau, van chat
cua tre » cua te, cuu tre, cua triet
ky dang » ky danh
vu sach » vu bach, su sach, vu khach
luc va » duc va, tuc va, loc va
va cua » va chua, via cua, ca cua
vu sac » vu san, va sac, vu cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((vu sac) OR (vu sach)) ((ky dang) or (ky nang)) xa hoi. hieu van cau luc va tinh va cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((vu sac) OR (vu sach)) ((ky dang) OR (ky nang)) xa hoi. hieu van cau luc va tinh va cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((vu sac) OR (vu sach)) ((ky dang) or (ky nang)) xa hoi. hieu van cau luc va tinh va cua tre".
• Adding a wildcard symbol may retrieve word variants: ((vu sac) OR (vu sach)) ((ky dang) or (ky nang)) xa hoi. hieu van cau luc va tinh va cua tre*.