Perhaps you should try some spelling variations:
tranh trong » tran trong, trinh trong, anh trong
thanh trong » thanh trung, hanh trong, nhanh trong
thien hach » thien thanh, hien hanh
hoc thien » hoc hien, hoc thieu, hoc thiet
dung cong » dung trong
van dung » van dong, xay dung, tin dung
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van 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 thien hach - ((thanh trong) or (tranh trong)) van dung cong tan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thien hach - ((thanh trong) OR (tranh trong)) van dung cong tan toan cau.
• Adding a wildcard symbol may retrieve word variants: hoc thien hach - ((thanh trong) or (tranh trong)) van dung cong tan toan cau*.