Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"php can nghe snippets" » "php can code snippets", "php van nghe snippets", "php cap nghe snippets", "php cac nghe snippets", "pho can nghe snippets", "phu can nghe snippets", "pham can nghe 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: (((("php can nghe snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("php can nghe snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( php can nghe snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("php can nghe snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.