Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chua cho du snippets" » "chua co du snippets", "chuan chon du snippets", "chua khoa du snippets", "chua cho cu snippets", "chua cho tu snippets", "chua cho duoc 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: (((("chua cho 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: (((("chua cho du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chua cho du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chua cho du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.