Perhaps you should try some spelling variations:
dinh tai » dinh toai, dinh tri, dinh thi
thu sach » thuat sach, thuoc sach, thu hoach
hanh tai » thanh tai, hang tai, han tai
sang mai » sang ma, sang tai, lang mai
tu sach » su sach, te sach, tu cach
cac xuc » cam xuc, cac nuoc, chat xuc
hieu ve » hieu va, hieu van
mai hoi » mai khoi, dai hoi, lai hoi
ky sang » ky nang, ky dang, ky tang
cuc tre » duc tre, cua tre, cuu tre
ve cac » va cac, vien cac
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) or (thu sach)) ky sang mai hoi. hieu ve cac xuc va ((hanh tai) or (dinh tai)) cuc tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (thu sach)) ky sang mai hoi. hieu ve cac xuc va ((hanh tai) OR (dinh tai)) cuc tre.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (thu sach)) ky sang mai hoi. hieu ve cac xuc va ((hanh tai) or (dinh tai)) cuc tre*.