Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"con menh cua snippets" » "con benh cua snippets", "van menh cua snippets", "con meo cua snippets", "con manh cua snippets", "con benh chua snippets", "con mang 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: (((("con menh 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: (((("con menh cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( con menh cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("con menh cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.