Perhaps you should try some spelling variations:
thiet tach » chiet tach, thuat tach
thien hach » thien thanh, hien hanh
thanh cung » thanh cuong, thanh cong, thanh tung
thong cong » trong cong, tong cong, thong thong
cap thong » cap tong, chap thuong, phap thong
cung cap » trung cap
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((thiet tach) OR (thien hach)) - thanh cung cap thong cong dan toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thiet tach) OR (thien hach)) - thanh cung cap thong cong dan toan cau".
• Adding a wildcard symbol may retrieve word variants: hoc ((thiet tach) OR (thien hach)) - thanh cung cap thong cong dan toan cau*.