Perhaps you should try some spelling variations:
nhung trong » hung trong, nhung tuong, thuong trong
hoc thieu » toc thieu, hoc hien
doc hieu » toc thieu, hoc hien
trung va » truong va, trung ha, trung tam
trang va » tran van, hang va
cac toan » cac khoan, hach toan, cac thanh
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((doc hieu) or (hoc thieu)) xanh - thanh ((trung va) OR (trang va)) nhung trong cac toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doc hieu) OR (hoc thieu)) xanh - thanh ((trung va) OR (trang va)) nhung trong cac toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doc hieu) or (hoc thieu)) xanh - thanh ((trung va) OR (trang va)) nhung trong cac toan tap".
• Adding a wildcard symbol may retrieve word variants: ((doc hieu) or (hoc thieu)) xanh - thanh ((trung va) OR (trang va)) nhung trong cac toan tap*.