Perhaps you should try some spelling variations:
thanh trung » thanh tung
cong trong » cong thuong, duong trong, cong trinh
lieu tinh » trieu tinh, diep tinh, bien tinh
trung cua » truong cua, trung tuan, trung cap
cong nong » cong dong, cong cong, cong luong
manh toan » thanh toan, anh tuan, tinh toan
van toan » van tuan, van tan, van thanh
ho lieu » so lieu, co lieu, ho kieu

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 tinh - thanh trung cua ((cong nong) OR (cong trong)) ((van toan) or (manh toan)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho lieu tinh - thanh trung cua ((cong nong) OR (cong trong)) ((van toan) OR (manh toan)) cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho lieu tinh - thanh trung cua ((cong nong) OR (cong trong)) ((van toan) or (manh toan)) cao".
• Adding a wildcard symbol may retrieve word variants: ho lieu tinh - thanh trung cua ((cong nong) OR (cong trong)) ((van toan) or (manh toan)) cao*.