Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thu thap voi snippets" » "thu nhap voi snippets", "thu thao voi snippets", "thuc thai voi snippets", "thu than voi snippets", "thu thap muoi snippets", "thu hop voi 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: (((("thu thap voi 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 thap voi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thu thap voi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thu thap voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.