Perhaps you should try some spelling variations:
dat tren » dat trong, dua tren
hanh tai » thanh tai, han tai, hinh tai
tang tai » dung tai, sang tao, dong tai
tai khoi » tai khoa, mai khoi, tao khoi
cham xuc » cam xuc, chat xuc, cham soc
hang tai » hang va, dung tai
cuu tre » cua tre, cau tren, cau treo
tu sach » thu sach, su sach, te sach
ve cham » va cham, ve chat, vu cham
hieu ve » hieu va, hieu van
y tang » ky tang, 6 tang, 7 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 y tang tai khoi. hieu ve cham xuc va ((hanh tai) OR (hang tai)) ((cuu tre) or (dat tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y tang tai khoi. hieu ve cham xuc va ((hanh tai) OR (hang tai)) ((cuu tre) OR (dat tren)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach y tang tai khoi. hieu ve cham xuc va ((hanh tai) OR (hang tai)) ((cuu tre) or (dat tren))".
• Adding a wildcard symbol may retrieve word variants: tu sach y tang tai khoi. hieu ve cham xuc va ((hanh tai) OR (hang tai)) ((cuu tre) or (dat tren))*.