Perhaps you should try some spelling variations:
"ap dung code snippets" » "ap dung cong snippets", "ap dung co snippets", "ap dung de snippets", "xay dung code snippets", "van dung code snippets", "ap dung code slippers"
"con chi code snippets" » "con cfd code snippets", "con chi con snippets", "con chi cong snippets", "con chim code snippets", "cong chi code snippets", "can chi code snippets", "con chi code slippers"
"locating bug code snippets" » "locating bug code slippers", "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: (((("ap dung code snippets") or ("con chi code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("ap dung code snippets") OR ("con chi code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ap dung code snippets ) or ( con chi code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ap dung code snippets") or ("con chi code snippets"))) or ("locating bug code snippets"))*.