Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dong duoc con snippets" » "dong duoc code snippets", "dong quoc con snippets", "dong duong con snippets", "trong duoc con snippets", "dong duoc co snippets", "dong duc con snippets", "dong nuoc cong snippets"
"dung java java snippets" » "dung va java 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 duoc con snippets") or ("dung java java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dong duoc con snippets") OR ("dung java java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dong duoc con snippets ) or ( dung java java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong duoc con snippets") or ("dung java java snippets"))) or ("locating bug core snippets"))*.