Perhaps you should try some spelling variations:
thanh thai » thanh hai, thanh tai, nhanh thai
thai cua » than cua, tai cuc, tri cua
va thanh » gia thanh, ban thanh, va tinh
loi roi » loi noi, lai roi, voi roi
cac xuc » cam xuc, cac nuoc, chat xuc
hieu va » lieu va, hieu qua
cua tre » cua te, cuu tre, cua triet
sach ly » sach y, sach lo, sach hay
sach ty » sach y, sach tu, sach thu
ma hoi » mai hoi, xa hoi, ma hoa
xuc va » duc va, tuc 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: te ((sach ly) OR (sach ty)) nang ((ma hoi) or (loi roi)). hieu va cac xuc va thanh thai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach ly) OR (sach ty)) nang ((ma hoi) OR (loi roi)). hieu va cac xuc va thanh thai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sach ly) OR (sach ty)) nang ((ma hoi) or (loi roi)). hieu va cac xuc va thanh thai cua tre".
• Adding a wildcard symbol may retrieve word variants: te ((sach ly) OR (sach ty)) nang ((ma hoi) or (loi roi)). hieu va cac xuc va thanh thai cua tre*.