Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"sieu van doi snippets" » "hieu van doi snippets", "su van doi snippets", "lieu va doi snippets", "sieu van loi snippets", "sieu van noi snippets", "sieu 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: (((("sieu 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: (((("sieu van doi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( sieu van doi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("sieu van doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.