Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chau tinh so snippets" » "ha tinh so snippets", "cuu tinh so snippets", "cua tinh so snippets", "chau tinh son snippets", "chau tinh soc snippets", "chau 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: (((("chau 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: (((("chau tinh so snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chau tinh so snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chau tinh so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.