Perhaps you should try some spelling variations:
"cham nen tranh snippets" » "cham nen thanh snippets", "cham nen tang snippets", "cham can tranh snippets", "cham den tranh snippets", "cham nhin tranh snippets", "cham ninh tranh snippets", "cham nen 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: (((("cham nen 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: (((("cham nen tranh snippets") OR ("python using a snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cham nen tranh snippets ) or ( python using a snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cham nen tranh snippets") or ("python using a snippets"))) or ("locating bug code snippets"))*.