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