Perhaps you should try some spelling variations:
su sach » so sach, vu sach
danh vi » hanh vi, dinh vi, danh di
hieu ve » hieu va, hieu van
cua tre » cua te, cuu tre, cua triet
ly nang » ky nang, ly hang, ly vang
ly van » le van, ly va, ly von
thu va » thuc va, thue va, thu ha
vi cua » vai cua, di cua
ve cac » va cac, vien cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ((ly nang) or (ly van)) xa hoi. hieu ve cac ((thu va) or (tu va)) danh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ((ly nang) OR (ly van)) xa hoi. hieu ve cac ((thu va) OR (tu va)) danh vi cua tre.
• Adding a wildcard symbol may retrieve word variants: su sach ((ly nang) or (ly van)) xa hoi. hieu ve cac ((thu va) or (tu va)) danh vi cua tre*.