Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lanh dao ve snippets" » "lanh bao ve snippets", "lanh dap ve snippets", "lanh dau ve snippets", "lan dao ve snippets", "anh dao ve snippets", "hanh dao ve 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: (((("lanh dao 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: (((("lanh dao ve snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lanh dao ve snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lanh dao ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.