Perhaps you should try some spelling variations:
"reading vu cao snippets" » "reading _ cao snippets", "reading 1 cao snippets", "reading 2 cao snippets", "reading cu cao snippets", "reading va cao snippets"
"creating a code snippets" » "creating _ code snippets", "reading a code snippets", "creating a core snippets"
"locating bug code snippets" » "locating bug core snippets", "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: (((("reading vu cao snippets") or ("creating a code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("reading vu cao snippets") OR ("creating a code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( reading vu cao snippets ) or ( creating a code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("reading vu cao snippets") or ("creating a code snippets"))) or ("locating bug code snippets"))*.