Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"anh kien dot snippets" » "danh kien dot snippets", "hanh kien dot snippets", "anh kiem dot snippets", "anh kien doi snippets", "anh trien dot snippets", "anh bien doi 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: (((("anh kien dot snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("anh kien dot snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( anh kien dot snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("anh kien dot snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.