Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"don mot con snippets" » "den mot con snippets", "son mot con snippets", "dung mot con snippets", "don mot cong snippets", "don mot co snippets", "don moi con 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: (((("don mot con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("don mot con snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( don mot con snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("don mot con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.