Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hoa vang cua snippets" » "hoa lang cua snippets", "hoa van cua snippets", "hoa nang cua snippets", "hoa mang cua snippets", "hoa hang cua snippets", "hoa tang cua 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 vang cua 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 vang cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoa vang cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoa vang cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.