Perhaps you should try some spelling variations:
khong thong » thong thong, khong trong, thong thuong
theo chieu » theo tieu, ho chieu, theo chu
hoc thieu » toc thieu, hoc hien
thong van » trong van, thong va, thong quan
mang cua » manh cua, dung cua, cong cua
van toan » van tuan, van tan, van thanh
toan cao » toan ban, toan tap
ban cua » ban quan

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chieu) OR (hoc thieu)) xanh - hanh ((mang cua) OR (ban cua)) khong thong van toan cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo chieu) or (hoc thieu)) xanh - hanh ((mang cua) OR (ban cua)) khong thong van toan cao~".
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) or (hoc thieu)) xanh - hanh ((mang cua) OR (ban cua)) khong thong van toan cao*.