Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thong va cho snippets" » "thong cua cho snippets", "truong va cho snippets", "thong qua cho snippets", "thong van cho snippets", "thong va co snippets", "thong va che 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: (((("thong va cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thong va cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thong va cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thong va cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.