Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"len moi voi snippets" » "ben moi voi snippets", "len troi voi snippets", "len ngoi voi snippets", "len doi voi snippets", "len moi doi snippets", "len moi thoi 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: (((("len moi voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("len moi voi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( len moi voi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("len moi voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.