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