Perhaps you should try some spelling variations:
thanh tri » thanh tra, thanh tai, chinh tri
van thanh » ban thanh, van tuan
hieu vu » hieu va, hieu ve, hieu su
tri cuu » tri cua, tra cuu, trinh cuu
cham lo » cham o, cam lo, cham soc
vu cham » va cham, vu kham, tu cham
thu sac » thu sach, thu san, thu xac
dai hoi » dai hoc, dai hai, dai moi
mai hoi » mai khoi, lai hoi, mai doi
cuu tre » cua tre, cau tren, cau treo
sac ky » cac ky, sai ky
lo van » le van, vo van, so van
ma hoi » xa hoi, ma hoa, me hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sac ky nang ((ma hoi) or (((mai hoi) or (dai hoi)))). hieu vu cham lo van thanh tri cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sac ky nang ((ma hoi) OR (((mai hoi) OR (dai hoi)))). hieu vu cham lo van thanh tri cuu tre.
• Adding a wildcard symbol may retrieve word variants: thu sac ky nang ((ma hoi) or (((mai hoi) or (dai hoi)))). hieu vu cham lo van thanh tri cuu tre*.