Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thuat dan mo snippets" » "thuat san mo snippets", "thuat ban mo snippets", "thuat dam mo snippets", "thuat dan mon snippets", "thuat dan so snippets", "thuat fan mo 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: (((("thuat dan mo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thuat dan mo snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thuat dan mo snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thuat dan mo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.