Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"kieu van doi snippets" » "hieu van doi snippets", "sieu van doi snippets", "lieu van doi snippets", "kieu van loi snippets", "kieu van noi snippets", "kieu van do 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: (((("kieu van doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("kieu van doi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( kieu van doi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("kieu van doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.