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