Perhaps you should try some spelling variations:
"trinh giang lang snippets" » "trinh giao lang snippets", "trinh giai lang snippets", "trinh tieng lang snippets", "trinh gian lang snippets", "trinh giang van snippets", "trinh gian lan snippets", "trinh giang lang slippers"
"dung cho code snippets" » "dung cho cong snippets", "dung cfd code snippets", "dung cho con snippets", "dung cho code slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code 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: (((("trinh giang lang snippets") or ("dung cho code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trinh giang lang snippets") OR ("dung cho code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trinh giang lang snippets ) or ( dung cho code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trinh giang lang snippets") or ("dung cho code snippets"))) or ("locating bug code snippets"))*.