Perhaps you should try some spelling variations:
hanh hai » thanh hai, nhanh hai, hang hai
ky dang » ky danh
hieu va » lieu va, hieu qua
hau loc » huu loc, phau hoc
va hanh » van hanh, va thanh, va danh
hai cua » thai cua, dai cua, hoi cua
cua tre » cua te, cuu tre, cua triet
ve cac » va cac, vien cac
va hau » van hau, va chau, vat hau
loc va » hoc va, luc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: ve cac ((ky dang) or (ky nang)) xa hoi. hieu va hau loc va hanh hai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ve cac ((ky dang) OR (ky nang)) xa hoi. hieu va hau loc va hanh hai cua tre.
• Adding a wildcard symbol may retrieve word variants: ve cac ((ky dang) or (ky nang)) xa hoi. hieu va hau loc va hanh hai cua tre*.