Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hoc thuy can snippets" » "hoc thuc can snippets", "hoc thuyet can snippets", "hoc thuat can snippets", "hoc thuy canh snippets", "hoc thuy san snippets", "hoc thuy van 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: (((("hoc thuy can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hoc thuy can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoc thuy can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoc thuy can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.