Perhaps you should try some spelling variations:
"hanh cham trinh snippets" » "hanh cham tinh snippets", "hanh cham binh snippets", "hanh cam tinh snippets", "thanh cham trinh snippets", "thanh pham trinh snippets", "khanh pham trinh snippets", "hanh cham trinh slippers"
"dung java java snippets" » "dung va java snippets", "dung java java slippers"
"locating bug code snippets" » "locating bug code slippers", "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 cham trinh snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hanh cham trinh snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hanh cham trinh snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hanh cham trinh snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.