Perhaps you should try some spelling variations:
"dong trien code snippets" » "dong trieu code snippets", "dong tien code snippets", "dong tren code snippets", "dong trien cong snippets", "dong trien con snippets", "dong trien code slippers"
"cong bug code snippets" » "cong dung code snippets", "cong hung code snippets", "cong bang code snippets", "cong bug code slippers"
"locating bug code snippets" » "locating bug code slippers"

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 trien code snippets") or ("cong bug code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dong trien code snippets") OR ("cong bug code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dong trien code snippets ) or ( cong bug code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong trien code snippets") or ("cong bug code snippets"))) or ("locating bug code snippets"))*.