Perhaps you should try some spelling variations:
"creating aa viet snippets" » "creating _ viet snippets", "creating _a viet snippets", "reading aa viet snippets", "creating va viet snippets", "creating ca viet snippets", "creating da viet snippets"
"creating a a slippers" » "creating _ a slippers", "reading a a slippers", "creating a a slippery", "creating a a grippers"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("creating aa viet snippets") or ("creating a a slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("creating aa viet snippets") OR ("creating a a slippers"))) OR ("locating bug code snippets"))*.
• Removing quotes may allow a broader search: (((( creating aa viet snippets ) or ( creating a a slippers ))) or ( locating bug code snippets ))*.