Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lan kho voi snippets" » "lam kho voi snippets", "lan cho voi snippets", "van kho voi snippets", "lan pho voi snippets", "lan ho voi snippets", "lan khi voi snippets"
"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: (((("lan kho voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("lan kho voi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lan kho voi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lan kho voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.