Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tat vong doi snippets" » "khat vong doi snippets", "tham vong doi snippets", "bat dong doi snippets", "tat trong doi snippets", "tat huong doi snippets", "tat dung doi 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: (((("tat vong doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tat vong doi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tat vong doi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tat vong doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.