Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nom vat cach snippets" » "nom va cach snippets", "nom sat cac snippets", "nom mot cach snippets", "nom van cach snippets", "from vat cach snippets", "nom viet cach 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: (((("nom vat cach snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nom vat cach snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nom vat cach snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nom vat cach snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.