Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"mot cao dong snippets" » "mot cao dang snippets", "mot lao dong snippets", "mot cao cong snippets", "mot co dong snippets", "mot cai dong snippets", "mot cay dong 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: (((("mot cao dong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("mot cao dong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( mot cao dong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("mot cao dong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.