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