Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
dinh tai » dinh toai, dinh tri, dinh thi
thu sach » thuat sach, thuoc sach, thu hoach
hanh tai » thanh tai, hang tai, han tai
van cac » van hac, van cau, van bac
cac xuc » cam xuc, cac nuoc, chat xuc
tu sach » su sach, te sach, tu cach
nang ma » tang ma, sang ma, nang cao
cuc tre » duc tre, cua tre, cuu tre
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: ((tu sach) or (thu sach)) ky nang ma hoi. hieu van 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 nang ma hoi. hieu van cac xuc va ((hanh tai) OR (dinh tai)) cuc tre.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (thu sach)) ky nang ma hoi. hieu van cac xuc va ((hanh tai) or (dinh tai)) cuc tre*.