Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nao bot hoc snippets" » "nao bo hoc snippets", "tao bot hoc snippets", "nuoc bot hoc snippets", "nao post hoc snippets", "nao bot khoa snippets", "nao buoc hoc 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: (((("nao bot hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nao bot hoc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nao bot hoc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nao bot hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.