Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"pham chi con snippets" » "pham chi code snippets", "pham thi con snippets", "tham chi con snippets", "pham chieu con snippets", "pham chi cong snippets", "pham cho con snippets", "pham khi con 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: (((("pham chi con snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("pham chi con snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( pham chi con snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pham chi con snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.