Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"phan huu de snippets" » "phan huu code snippets", "pham huu de snippets", "phan huy de snippets", "phan hieu de snippets", "phan cuu de snippets", "phan huu du snippets", "phan huu dien 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: (((("phan huu de snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phan huu de snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( phan huu de snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phan huu de snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.