Perhaps you should try some spelling variations:
thu sang » thu hang, thu san, thu bang
van hanh » van thanh, ban hanh, van anh
sang ky » sang kyo, dang ky, tang ky
va danh » va dinh, va dan, va hanh
cao duc » dao duc, cao suc, giao duc
hieu ve » hieu va, hieu van
nang xa » lang xa, nang ma, mang xa
ve cao » va cao, ve bao, ve cac
di cua » dai cua, doi cua, de cua
cua cu » cua chu, cua cau, cua su

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sang ky ((nang xa) or (nang x)) hoi. hieu ve cao duc ((van hanh) or (va danh)) di cua cu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sang ky ((nang xa) OR (nang x)) hoi. hieu ve cao duc ((van hanh) OR (va danh)) di cua cu.
• Adding a wildcard symbol may retrieve word variants: thu sang ky ((nang xa) or (nang x)) hoi. hieu ve cao duc ((van hanh) or (va danh)) di cua cu*.