Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lap anh du snippets" » "lap lanh du snippets", "lan anh du snippets", "lap doanh du snippets", "lap anh duc snippets", "lap danh du snippets", "lap anh d 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: (((("lap anh 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: (((("lap anh du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lap anh du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lap anh du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.