Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"thu dac danh snippets" » "thu tac danh snippets", "thu dac manh snippets", "thu dai danh snippets", "thu duc danh snippets", "thu xac danh snippets", "thu da danh snippets", "thu dac danh 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: (((("thu dac danh snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thu dac danh snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thu dac danh snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thu dac danh snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.