Perhaps you should try some spelling variations:
thien dang » thien bang, thien danh, thien nang
nhung cong » dung cong, thong cong, hang cong
hoc thien » hoc hien, hoc thieu, hoc thiet
tranh va » tranh van, trang va, trinh va
cong tan » cong tac, cong san, cong thanh
phan cau » phan dau, phan cac, toan cau
phan lap » phan dau

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thien dang - canh tranh va nhung cong tan ((((phan cau) or (phan lap))) or (phan tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thien dang - canh tranh va nhung cong tan ((((phan cau) OR (phan lap))) OR (phan tu)).
• Adding a wildcard symbol may retrieve word variants: hoc thien dang - canh tranh va nhung cong tan ((((phan cau) or (phan lap))) or (phan tu))*.