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