Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhan va di snippets" » "nhan tai di snippets", "nhan dan di snippets", "nhan tao di snippets", "nhan va dai snippets", "nhan va doi snippets", "nhan va dia snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core 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: (((("nhan va di snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nhan va di snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhan va di snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhan va di snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.