Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cu chua dong snippets" » "cu cua dong snippets", "cu ha dong snippets", "cu huy dong snippets", "cua chua dong snippets", "ca chua 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: (((("cu chua 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: (((("cu chua dong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cu chua dong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cu chua dong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.