Perhaps you should try some spelling variations:
"tao ban cong snippets" » "tao ban code snippets", "tao bang cong snippets", "tao van cong snippets", "tao phan cong snippets", "tao bac cong snippets", "cao bang cong snippets", "tao nhan cong snippets"
"locating bug core snippets" » "locating bug code 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 ("tao ban cong snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("tao ban cong snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( tao ban cong snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("tao ban cong snippets"))) or ("locating bug core snippets"))*.