Perhaps you should try some spelling variations:
thong danh » thong dan, thong lanh, trong danh
doi chieu » doc hieu, doi chi, mot chieu
danh toan » manh toan, anh toan, dan toan
ho chieu » theo chieu, hoc thieu, mot chieu
hung qua » hung quang, nhung quy, duong qua
dung qua » duong qua, dung quan, dung cua
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: ((ho chieu) or (doi chieu)) xanh - manh ((hung qua) OR (dung qua)) thong thong danh toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (doi chieu)) xanh - manh ((hung qua) OR (dung qua)) thong thong danh toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) or (doi chieu)) xanh - manh ((hung qua) OR (dung qua)) thong thong danh toan tap".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (doi chieu)) xanh - manh ((hung qua) OR (dung qua)) thong thong danh toan tap*.