Perhaps you should try some spelling variations:
"dung vbug code snippets" » "dung vung code snippets", "dung vbug code slippers", "dung vbung code snippets", "dung vbugs code snippets"
"banh kem code snippets" » "hanh kem code snippets", "banh keo code snippets", "ban kem code snippets", "banh kem cd snippets", "banh lbm code snippets", "banh kem 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: (((("banh kem code snippets") or ("dung vbug code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("banh kem code snippets") OR ("dung vbug code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( banh kem code snippets ) or ( dung vbug code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("banh kem code snippets") or ("dung vbug code snippets"))) or ("locating bug code snippets"))*.