Perhaps you should try some spelling variations:
thanh tri » thanh tra, thanh tai, chinh tri
duc tuan » duc thuan, duc toan, duc quan
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
hieu ve » hieu va, hieu van
cua tre » cua te, cuu tre, cua triet
dai ky » dan ky, dai ly, sai ky
ve cam » ve cham, ve cac, va cam

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

• Performing a fuzzy search may retrieve terms with similar spellings: sau dai ky lang xa hoi. hieu ve cam ((duc tuan) or (duc tan)) thanh tri cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: sau dai ky lang xa hoi. hieu ve cam ((duc tuan) OR (duc tan)) thanh tri cua tre.
• Adding a wildcard symbol may retrieve word variants: sau dai ky lang xa hoi. hieu ve cam ((duc tuan) or (duc tan)) thanh tri cua tre*.