Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"giong cao so snippets" » "giong cay so snippets", "duong cao so snippets", "giong rau so snippets", "giong cao son snippets", "giong co so snippets", "giong cao su 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: (((("giong cao 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: (((("giong cao so snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( giong cao so snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("giong cao so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.