Perhaps you should try some spelling variations:
thanh tai » thanh hai, thanh toan, doanh tai
cau tren » cu tren, dau tren, ca tren
hanh tai » hang tai, han tai, hinh tai
tang mai » tang ma, tang tai, lang mai
mai khoi » mai khoa, tai khoa, cac khoi
cham xuc » cam xuc, chat xuc, cham soc
cuu tre » cua tre, cau treo
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
ve cham » va cham, ve chat, vu cham
hieu ve » hieu va, hieu van
ky tang » ky nang, ky dang, kho tang
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: tu sach ky tang mai khoi. hieu ve cham xuc va ((hanh tai) OR (thanh tai)) ((cuu tre) or (cau tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky tang mai khoi. hieu ve cham xuc va ((hanh tai) OR (thanh tai)) ((cuu tre) OR (cau tren)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky tang mai khoi. hieu ve cham xuc va ((hanh tai) OR (thanh tai)) ((cuu tre) or (cau tren))".
• Adding a wildcard symbol may retrieve word variants: tu sach ky tang mai khoi. hieu ve cham xuc va ((hanh tai) OR (thanh tai)) ((cuu tre) or (cau tren))*.