Perhaps you should try some spelling variations:
thien hach » thien thanh, hien hanh
trung tuan » trung thanh, trung tam, tran tuan
hoc thien » hoc hien, hoc thieu, hoc thiet
trung cua » truong cua, trung cap, dung cua
nhung don » nhung van, nhung bo
hang cong » dang cong, hang nong, bang cong
dan than » dan chan, ban than, van than
than cao » toan cao, thai cao, than cap

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 - hanh ((trung cua) OR (trung tuan)) ((nhung don) or (hang cong)) dan than cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thien hach - hanh ((trung cua) OR (trung tuan)) ((nhung don) OR (hang cong)) dan than cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thien hach - hanh ((trung cua) OR (trung tuan)) ((nhung don) or (hang cong)) dan than cao".
• Adding a wildcard symbol may retrieve word variants: hoc thien hach - hanh ((trung cua) OR (trung tuan)) ((nhung don) or (hang cong)) dan than cao*.