Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"pho danh hoc snippets" » "kho danh hoc snippets", "cho doanh hoc snippets", "khao danh hoc snippets", "pho dan hoc snippets", "pho danh hoa snippets", "pho anh hoc 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: (((("pho danh hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("pho danh hoc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pho danh hoc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pho danh hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.