Perhaps you should try some spelling variations:
"chua can tranh snippets" » "chua canh tranh snippets", "chua tan tran snippets", "chua van ranh snippets", "cua can tranh snippets", "chua cau tranh snippets", "chua dan tranh snippets", "chua can tranh 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: (((("chua can tranh snippets") or ("python using a snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chua can tranh snippets") OR ("python using a snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chua can tranh snippets ) or ( python using a snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chua can tranh snippets") or ("python using a snippets"))) or ("locating bug code snippets"))*.