Perhaps you should try some spelling variations:
"do tam chieu snippets" » "do tam code snippets", "do tim hieu snippets", "do nam chien snippets", "do thi chieu snippets", "don tam chieu snippets", "doc tam chieu snippets", "co tam chieu snippets"
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("do tam chieu snippets") OR ("python using java snippets"))) OR ("locating bug core snippets"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"do tam chieu snippets\") OR (\"python using java snippets\"))) OR (\"locating bug core snippets\"))".
• Removing quotes may allow a broader search: (((( do tam chieu snippets ) OR ( python using java snippets ))) OR ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("do tam chieu snippets") OR ("python using java snippets"))) OR ("locating bug core snippets"))*.