Perhaps you should try some spelling variations:
thanh tung » thanh cong
hien manh » hien hanh, tien manh, hieu manh
cua trong » cua truong, cua trung, ca trong
qua trong » quan trong, qua trinh, qua song
cong ban » cong bang, cong san, cong tan
than cau » toan cau, phan cau, than cap
hanh cac » hang cac, hanh cat, nhanh cay

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 manh - thanh tung ((cua trong) or (qua trong)) cong ban ((than cau) or (hanh cac))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien manh - thanh tung ((cua trong) OR (qua trong)) cong ban ((than cau) OR (hanh cac)).
• Adding a wildcard symbol may retrieve word variants: hoc hien manh - thanh tung ((cua trong) or (qua trong)) cong ban ((than cau) or (hanh cac))*.