Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"pham lan cha snippets" » "pham lan code snippets", "pham luan cha snippets", "pham van cha snippets", "phan lan cha snippets", "pham lam cha snippets", "pham lan cho snippets", "pham lan ha 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 lan cha 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 lan cha snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( pham lan cha snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pham lan cha snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.