Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhan va pd snippets" » "nhan tai pd snippets", "nhan dan pd snippets", "nhan tao pd snippets", "nhan va p snippets", "nhan va pt 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 pd 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 pd snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhan va pd snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhan va pd snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.