Perhaps you should try some spelling variations:
thanh trung » thanh tung
trung vat » trung va, trung van, trong vat
dung cong » dung trong
cong vinh » cong trinh, trong vinh, cong viec
vinh toan » tinh toan, hinh toan, minh toan
theo chu » theo chieu, cho chu, chao chu
vat dung » van dung, va dung, viet dung
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc hien) or (theo chu)) tinh - thanh trung vat dung cong vinh toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc hien) OR (theo chu)) tinh - thanh trung vat dung cong vinh toan tap.
• Adding a wildcard symbol may retrieve word variants: ((hoc hien) or (theo chu)) tinh - thanh trung vat dung cong vinh toan tap*.