Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"duong qua du snippets" » "duong qua dau snippets", "duong qua su snippets", "duong qua cu snippets", "dung qua du snippets", "huong qua du snippets", "dong qua du 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: (((("duong qua 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: (((("duong qua du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( duong qua du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duong qua du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.