Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tac can coi snippets" » "tac van coi snippets", "tac quan coi snippets", "tac vang coi snippets", "tac can chi snippets", "tac can moi snippets", "tac con coi 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: (((("tac can coi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tac can coi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tac can coi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tac can coi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.