Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhat ca doi snippets" » "nhat cua doi snippets", "nhap ca doi snippets", "hat ca doi snippets", "nhat cau doi snippets", "nhat cac doi snippets", "nhat va doi 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: (((("nhat ca doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nhat ca doi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhat ca doi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhat ca doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.