Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"toan nham le snippets" » "toan nha le snippets", "toan ham le snippets", "hoang nham le snippets", "toan nhat le snippets", "toan pham le snippets", "toan nhom le 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: (((("toan nham le snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("toan nham le snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( toan nham le snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("toan nham le snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.