Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
hang tai » hang va, dung tai
hanh vai » hanh vi, hanh va, hanh tai
xuc van » duc van, luc van, vuc van
van cam » van nam, van lam, van cau
sach ky » sac ky, sach y, sach kem
nang ma » tang ma, sang ma, nang cao
sach ty » sach y, sach tu, sach thu
cua tre » cua te, cuu tre, cua triet

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

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