Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhan hat ke snippets" » "nhan chat ke snippets", "nhan hoat ke snippets", "nhan vat ke snippets", "nhan hat de snippets", "nhan hat le snippets", "nhan hoat keo 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 hat ke 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 hat ke snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhan hat ke snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhan hat ke snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.