Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhat de bo snippets" » "nhat ve bo snippets", "nhat le bo snippets", "chat deo bo snippets", "nhat de bao snippets", "nhat do bo snippets", "nhat de co 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 de bo 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 de bo snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhat de bo snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhat de bo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.