Perhaps you should try some spelling variations:
"lieu tao trinh snippets" » "lieu tao tinh snippets", "lieu tho trinh snippets", "lieu giao trinh snippets", "lieu tai trinh snippets", "lieu dao trinh snippets", "lieu bao trinh snippets", "lieu tao trinh 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: (((("python using a snippets") or ("lieu tao trinh snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using a snippets") OR ("lieu tao trinh snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( python using a snippets ) or ( lieu tao trinh snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using a snippets") or ("lieu tao trinh snippets"))) or ("locating bug code snippets"))*.