Perhaps you should try some spelling variations:
van chat » cao chat
hieu van » hieu va, thien van, lieu va
thu sach » tu sach, thuat sach, thuoc sach
danh vai » danh sai, danh va, doanh van
vai cua » dai cua, hai cua, lai cua
su sach » so sach, vu sach
nang ma » tang ma, sang ma, nang cao
cua tre » cua te, cuu tre, cua triet
ma hoi » mai hoi, xa hoi, ma hoa
xuc va » duc va, luc va, xac va
tuc va » thuc va, truc va, tuc xa

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((su sach) or (thu sach)) ky nang ma hoi. hieu van chat ((xuc va) OR (tuc va)) danh vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (thu sach)) ky nang ma hoi. hieu van chat ((xuc va) OR (tuc va)) danh vai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) or (thu sach)) ky nang ma hoi. hieu van chat ((xuc va) OR (tuc va)) danh vai cua tre".
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (thu sach)) ky nang ma hoi. hieu van chat ((xuc va) OR (tuc va)) danh vai cua tre*.