Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tran ke doi snippets" » "trang ke doi snippets", "toan ke doi snippets", "tran ku doi snippets", "tran ke do snippets", "tran te doi snippets", "tran ky doi 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: (((("tran ke doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tran ke doi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tran ke doi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tran ke doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.