Perhaps you should try some spelling variations:
"cong tinh phi snippets" » "cong trinh phi snippets", "cong vinh phi snippets", "cong thanh phi snippets", "cong tinh phu snippets", "cong kinh phi snippets", "cong linh phi snippets", "cong tinh phi slippers"
"python using a snippets" » "python using a slippers"
"locating bug code snippets" » "locating bug code slippers", "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: (((("cong tinh phi snippets") or ("python using a snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cong tinh phi snippets") OR ("python using a snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cong tinh phi snippets ) or ( python using a snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong tinh phi snippets") or ("python using a snippets"))) or ("locating bug code snippets"))*.