Perhaps you should try some spelling variations:
thien van » thi van
hanh vai » hanh vi, hanh tai, hanh van
cua tre » cua te, cuu tre, cua triet
hanh va » hang va, hanh vi
van cam » van nam, van lam, van cau
nang xa » nang x, lang xa, mang xa
nang ma » tang ma, sang ma, nang cao
sac ky » cac ky, sai ky
xuc va » duc va, tuc va, luc va
su sac » su sach, su cac, su xac

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

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