Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"mot phan ve snippets" » "mon phan ve snippets", "mot nhan ve snippets", "mot thanh ve snippets", "mot phan le snippets", "mot phan va snippets", "mot pha 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: (((("mot phan 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: (((("mot phan ve snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( mot phan ve snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("mot phan ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.