Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"bua kho nghe snippets" » "bua khoe nghe snippets", "bua so nghe snippets", "bua o nghe snippets", "qua kho nghe snippets", "cua kho nghe snippets", "bia khoa nghe 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: (((("bua kho nghe snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("bua kho nghe snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( bua kho nghe snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("bua kho nghe snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.