Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nam anh ve snippets" » "nam danh ve snippets", "tam anh ve snippets", "am anh ve snippets", "nam hanh ve snippets", "nam anh va snippets", "nam anh viet 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: (((("nam anh 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: (((("nam anh ve snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nam anh ve snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nam anh ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.