Perhaps you should try some spelling variations:
thanh hai » thanh phan, thanh hoa, thanh san
va thanh » gia thanh, ban thanh, va tinh
pham duy » pham duc
cham duc » pham duc, cham soc, phan duc
te sach » toc sach
hai cua » thai cua, dai cua, hoi cua
hieu va » lieu va, hieu qua
mai hoi » mai khoi, dai hoi, lai hoi
cua tre » cua te, cuu tre, cua triet
y nang » ky nang, ly nang, v nang
ma hoi » xa hoi, ma hoa, me hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach y nang ((ma hoi) or (mai hoi)). hieu va ((cham duc) OR (pham duy)) va thanh hai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y nang ((ma hoi) OR (mai hoi)). hieu va ((cham duc) OR (pham duy)) va thanh hai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y nang ((ma hoi) or (mai hoi)). hieu va ((cham duc) OR (pham duy)) va thanh hai cua tre".
• Adding a wildcard symbol may retrieve word variants: te sach y nang ((ma hoi) or (mai hoi)). hieu va ((cham duc) OR (pham duy)) va thanh hai cua tre*.