Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"pho phan cac snippets" » "pho phan code snippets", "phoi phan cac snippets", "cho phan cac snippets", "phe phan cac snippets", "pho nhan cach snippets", "pho phan dau snippets", "pho phan lap 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: (((("pho phan cac snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("pho phan cac snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( pho phan cac snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pho phan cac snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.