Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"vat dong hoc snippets" » "vat duong hoc snippets", "van dong hoc snippets", "bat dong hoc snippets", "vat dong co snippets", "vat dong luc 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: (((("vat dong 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: (((("vat dong hoc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( vat dong hoc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("vat dong hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.