Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"quang ban ve snippets" » "quang binh ve snippets", "quang tuan ve snippets", "quang tran ve snippets", "quang ban va 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: (((("quang ban ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("quang ban ve snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( quang ban ve snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("quang ban ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.