Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
tranh va » tranh van, trang va, thanh va
trinh va » trinh van, trinh vat, trinh ve
cong dan » cong san, cong tan, huong dan
dan phan » doan phan, dan chan, van phan
phan cau » phan dau, phan cac, phan tu
ho lieu » co lieu, ho kieu, ho chieu
so lieu » so dieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho lieu) OR (so lieu)) tinh - canh ((tranh va) or (trinh va)) nhung cong dan phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho lieu) OR (so lieu)) tinh - canh ((tranh va) OR (trinh va)) nhung cong dan phan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho lieu) OR (so lieu)) tinh - canh ((tranh va) or (trinh va)) nhung cong dan phan cau".
• Adding a wildcard symbol may retrieve word variants: ((ho lieu) OR (so lieu)) tinh - canh ((tranh va) or (trinh va)) nhung cong dan phan cau*.