Perhaps you should try some spelling variations:
"dung cau kinh slippers" » "dung cau vinh slippers", "dung cap kinh slippers", "dung cuu kinh slippers", "dung chau kinh slippers", "dung cu kinh slippers", "dung cac kinh slippers", "dung cau kinh slippery", "dung cau kinh 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 cau kinh 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 cau kinh slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( using a code snippets ) or ( dung cau kinh slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using a code snippets") or ("dung cau kinh slippers"))) or ("locating bug code snippets"))*.