Perhaps you should try some spelling variations:
"bang cac chat snippets" » "bang cao chat snippets", "bang cac thuat snippets", "bang cac nha snippets", "nang cao chat snippets", "hang ca chat snippets", "dung cac chat snippets"
"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 ("bang cac chat snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using a code snippets") OR ("bang cac chat snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( using a code snippets ) or ( bang cac chat snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using a code snippets") or ("bang cac chat snippets"))) or ("locating bug code snippets"))*.