Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hanh cong o snippets" » "thanh cong o snippets", "hang cong o snippets", "hanh dong o snippets", "hanh cong so snippets", "hanh cong co snippets", "hanh cong bo 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 cong o 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 cong o snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hanh cong o snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hanh cong o snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.