Perhaps you should try some spelling variations:
"trinh thue 5 snippets" » "trinh thuc 5 snippets", "tinh thue 5 snippets", "trinh thuy 5 snippets", "trinh thu 5 snippets", "trinh thue 7 snippets", "trinh thue _ snippets"
"python using java slippers" » "python using data slippers", "python using java slippery", "python using java grippers"
"locating bug code snippets" » "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: (((("trinh thue 5 snippets") or ("python using java slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trinh thue 5 snippets") OR ("python using java slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trinh thue 5 snippets ) or ( python using java slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trinh thue 5 snippets") or ("python using java slippers"))) or ("locating bug code snippets"))*.