Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
thanh tung » thanh cong
nhung cong » dung cong, thong cong, hang cong
hoc thieu » toc thieu, hoc hien
cong tinh » cong trinh, cong vinh, long tinh
ha nhung » hoa nhung, hay nhung, pha nhung
toan cao » toan ban, toan tap

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

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