Perhaps you should try some spelling variations:
thien van » thi van
van phan » van phong, van thanh, luan phan
hanh vai » hanh vi, hanh va, hanh tai
vai cua » dai cua, hai cua, lai cua
duc van » duc va, duc tan, duc manh
duc ban » duc tan, dua ban, duc man
cua tre » cua te, cuu tre, cua triet
nang xa » nang x, lang xa, nang ma
bai ky » ban ky, bac ky, dai ky
sai ky » sac ky

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu ((bai ky) or (sai ky)) nang xa hoi. thien van phan ((duc ban) OR (duc van)) hanh vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((bai ky) OR (sai ky)) nang xa hoi. thien van phan ((duc ban) OR (duc van)) hanh vai cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((bai ky) or (sai ky)) nang xa hoi. thien van phan ((duc ban) OR (duc van)) hanh vai cua tre*".