Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"lan dan cua snippets" » "ban dan cua snippets", "van dan cua snippets", "lan dau cua snippets", "lan dan ca snippets", "lan ban cua snippets", "lan dai cua 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: (((("lan dan cua snippets") or ("python using java snippets"))) or ("locating bugs code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("lan dan cua snippets") OR ("python using java snippets"))) OR ("locating bugs code snippets")).
• Removing quotes may allow a broader search: (((( lan dan cua snippets ) or ( python using java snippets ))) or ( locating bugs code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lan dan cua snippets") or ("python using java snippets"))) or ("locating bugs code snippets"))*.