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