Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lap tao canh snippets" » "lap tao anh snippets", "lap tao can snippets", "lap tao danh snippets", "lap tai canh snippets", "lap tap canh snippets", "lap khao canh 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: (((("lap tao 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: (((("lap tao canh snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lap tao canh snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lap tao canh snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.