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