Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"phan va he snippets" » "phan va code snippets", "phan van he snippets", "nhan va he snippets", "han va he snippets", "phan va che snippets", "phan va ghe snippets", "phan va de 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 va he 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 va he snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( phan va he snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phan va he snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.