Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hanh tang du snippets" » "hanh trang du snippets", "anh tang du snippets", "hanh mang du snippets", "hanh nang du snippets", "hanh hang dau snippets", "hanh dang duc 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: (((("hanh tang du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hanh tang du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hanh tang du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hanh tang du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.