Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"don va danh slippers" » "don va dinh slippers", "don va dan slippers", "don va hanh slippers", "doan va danh slippers", "dong va danh slippers", "don vi danh slippers", "don va danh slippery", "don va danh 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: (((("don va danh slippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("don va danh slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( don va danh slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("don va danh slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.