Perhaps you should try some spelling variations:
thanh trung » thanh tung
cong thanh » dong thanh, cong trinh, cong tan
hien cach » hien cac, hieu cach, thien hach
trung ap » trung cap, trung lap, trung tam
toan tai » doanh tai, toan ban, toan cao
toan tap » toan ban
ap dung » xay dung, van dung

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 cach - thanh trung ap dung ((cong ty) or (cong thanh)) ((toan tai) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien cach - thanh trung ap dung ((cong ty) OR (cong thanh)) ((toan tai) OR (toan tap)).
• Adding a wildcard symbol may retrieve word variants: hoc hien cach - thanh trung ap dung ((cong ty) or (cong thanh)) ((toan tai) or (toan tap))*.