Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"trinh thi xa slippers" » "trinh tai xa slippers", "trinh thiet xa slippers", "trinh tu xa slippers", "trinh thi xa slippery", "trinh thi xa 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 thi xa slippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trinh thi xa slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trinh thi xa slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trinh thi xa slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.