Perhaps you should try some spelling variations:
"huong doi chieu snippets" » "huong doc hieu snippets", "huong doi chi snippets", "huong ho chieu snippets", "huong dan chieu snippets", "trong doi chieu snippets", "dung doi chieu 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 ("huong doi chieu snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using a code snippets") OR ("huong doi chieu snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( using a code snippets ) or ( huong doi chieu snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using a code snippets") or ("huong doi chieu snippets"))) or ("locating bug code snippets"))*.