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