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