Perhaps you should try some spelling variations:
"dong phan thi snippets" » "dung phan thi snippets", "cong phan thi snippets", "dong chan thi snippets", "dong pham thi snippets", "dong tran thi snippets", "dong phan tu snippets", "dong phan thi slippers"
"dung sinh java snippets" » "duong sinh java snippets", "dang sinh java snippets", "dung ninh java snippets", "dung trinh java snippets", "dung using java snippets", "dung sinh va snippets", "dung sinh java slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("dong phan thi snippets") or ("dung sinh java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dong phan thi snippets") OR ("dung sinh java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dong phan thi snippets ) or ( dung sinh java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong phan thi snippets") or ("dung sinh java snippets"))) or ("locating bug code snippets"))*.