Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hieu su cua snippets" » "hieu sau cua snippets", "tieu su cua snippets", "hieu so cua snippets", "hieu hu cua snippets", "hieu tu cua snippets", "hieu vu cua 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: (((("hieu su cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hieu su cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hieu su cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hieu su cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.