Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"bua dang son snippets" » "cua dang son snippets", "bua sang son snippets", "tuan dang son snippets", "bua lang son snippets", "bua dong son snippets", "bua bang son 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: (((("bua dang son snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("bua dang son snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( bua dang son snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("bua dang son snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.