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