Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"so thao du snippets" » "soan thao du snippets", "hoi thao du snippets", "so thap du snippets", "so tham du snippets", "so thao lu 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: (((("so thao du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("so thao du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( so thao du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("so thao du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.