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