Perhaps you should try some spelling variations:
"chap dat lanh snippets" » "phap day lanh snippets", "cai dat lanh snippets", "lap dat lanh snippets", "chap dat anh snippets", "chap dau lanh snippets", "chap hat lanh snippets", "chap dat lanh slippers"
"python using a snippets" » "python using a slippers"
"locating bug code snippets" » "locating bug code slippers", "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: (((("chap dat lanh snippets") or ("python using a snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chap dat lanh snippets") OR ("python using a snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chap dat lanh snippets ) or ( python using a snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chap dat lanh snippets") or ("python using a snippets"))) or ("locating bug code snippets"))*.