Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"huu bach moi snippets" » "huu phach moi snippets", "huu hanh moi snippets", "vu bach moi snippets", "huu bach mai snippets", "huu sach moi snippets", "huu ban moi 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: (((("huu bach moi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("huu bach moi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( huu bach moi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("huu bach moi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.