Perhaps you should try some spelling variations:
"dong many core snippets" » "duong manh core snippets", "dong san core snippets", "dong anh core snippets"
"dong bang cong snippets" » "dong san cong snippets", "dong dang cong snippets", "dong bang song snippets", "dong hang cong snippets"
"locating bug code 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: (((("dong many core snippets") or ("dong bang cong snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dong many core snippets") OR ("dong bang cong snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dong many core snippets ) or ( dong bang cong snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong many core snippets") or ("dong bang cong snippets"))) or ("locating bug code snippets"))*.