Perhaps you should try some spelling variations:
"dung cach pham slippers" » "dung cach pha slippers", "dung cach phat slippers", "dung tac pham slippers", "dung cac pham slippers", "dung sach pham slippers", "dong cach pham slippers", "dung cach pham slippery", "dung cach pham grippers"
"using a code snippets" » "using 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: (((("using a code snippets") or ("dung cach pham slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using a code snippets") OR ("dung cach pham slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( using a code snippets ) or ( dung cach pham slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using a code snippets") or ("dung cach pham slippers"))) or ("locating bug code snippets"))*.