Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ly tran son snippets" » "ly trang son snippets", "ly tan son snippets", "ly tran hong snippets", "ly toan son snippets", "ly trong son snippets", "huy tran 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: (((("ly tran 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: (((("ly tran son snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ly tran son snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ly tran son snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.