Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"phi luan hon snippets" » "phi luan code snippets", "thi luan hon snippets", "phi quan hon snippets", "phap luan hon snippets", "phi luan hoan snippets", "phi luan han snippets", "phi luan von snippets"
"python using java snippets" » "python using data 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: (((("phi luan hon snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phi luan hon snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( phi luan hon snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phi luan hon snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.