Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"moi ngon cac snippets" » "mon ngon cac snippets", "voi ngon cac snippets", "moi nguoi cac snippets", "moi nguon cam snippets", "moi chon cac snippets", "moi ngu cac snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("moi ngon cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("moi ngon cac snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( moi ngon cac snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("moi ngon cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.