Perhaps you should try some spelling variations:
"dong bang cong snippets" » "dong san cong snippets", "dong dang cong snippets", "dong bang song snippets", "dong dung cong snippets"
"dong hang cong snippets" » "dong hung cong snippets", "dong nang cong snippets", "dong yang cong snippets", "dong dang cong snippets", "dong hang nong snippets", "dong thanh cong snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core 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 bang cong snippets") OR ("dong hang cong snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dong bang cong snippets") OR ("dong hang cong snippets"))) OR ("locating bug code snippets")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"dong bang cong snippets\") OR (\"dong hang cong snippets\"))) or (\"locating bug code snippets\"))".
• Removing quotes may allow a broader search: (((( dong bang cong snippets ) OR ( dong hang cong snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong bang cong snippets") OR ("dong hang cong snippets"))) or ("locating bug code snippets"))*.