Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using raw snippets" » "python using real snippets", "python using a snippets", "python using low snippets"
"phan ve dat snippets" » "phan le dat snippets", "phan va dat snippets", "pha ve dat snippets", "phan de dat snippets", "phan ve dao 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 ve dat snippets") or ("python using raw snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phan ve dat snippets") OR ("python using raw snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( phan ve dat snippets ) or ( python using raw snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phan ve dat snippets") or ("python using raw snippets"))) or ("locating bug core snippets"))*.