Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"bui khac hoa snippets" » "bui nhat hoa snippets", "bui kha hoa snippets", "bui phac hoa snippets", "bui khac hoang 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: (((("bui khac hoa snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("bui khac hoa snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( bui khac hoa snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("bui khac hoa snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.