Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hoa doi ve snippets" » "hoa dai ve snippets", "hoc doi ve snippets", "xoa doi ve snippets", "hoa moi ve snippets", "hoa doi va snippets", "hoa noi ve 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: (((("hoa doi ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hoa doi ve snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoa doi ve snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoa doi ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.