Perhaps you should try some spelling variations:
"using 3d code snippets" » "using 3 code snippets", "using a code snippets", "using _ code snippets", "using cfd code snippets", "using 3d code slippers"
"dong san trac snippets" » "cong san trac snippets", "dong bang trac snippets", "dong von trac snippets", "dong sinh trac snippets", "dong phan trac snippets", "dong sat trach snippets", "dong san trac slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("using 3d code snippets") or ("dong san trac snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using 3d code snippets") OR ("dong san trac snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( using 3d code snippets ) or ( dong san trac snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using 3d code snippets") or ("dong san trac snippets"))) or ("locating bug code snippets"))*.