Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dong tac cap snippets" » "cong tac cap snippets", "dong tai cap snippets", "dong bac cap snippets", "dong tac can snippets", "dong cac cap snippets", "dong tac cay 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: (((("dong tac cap snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dong tac cap snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dong tac cap snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong tac cap snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.