Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lap xuan can snippets" » "lap luan can snippets", "lang xuan can snippets", "lanh xuan can snippets", "lap xuan cang snippets", "lap xuan tan snippets", "lap xuan chanh 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: (((("lap xuan can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("lap xuan can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lap xuan can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lap xuan can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.