Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phu dan he snippets" » "phu san he snippets", "phu da he snippets", "phu can he snippets", "phu dan ve snippets", "phu dan de snippets", "phu dan ke 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: (((("phu dan he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phu dan he snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phu dan he snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phu dan he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.