Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"most tu lanh snippets" » "most tu hanh snippets", "most tu lenh snippets", "most tu manh snippets", "mot tu lanh snippets", "most tu lanh 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: (((("most tu lanh snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("most tu lanh snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( most tu lanh snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("most tu lanh snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.