Perhaps you should try some spelling variations:
theo chieu » theo tieu, theo chu, thi chieu
truong va » truong dai, truong cao, truong dao
ho chieu » hoc thieu, doi chieu, mot chieu
tuong va » thuong va, luong va, duong va
cong tac » cong ty
tac nhan » tao nhan, cac nhan, dac nhan
nhan cao » nha cao, nhan tao, nhan co

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 (theo chieu)) sang - thanh ((tuong va) OR (truong va)) trong cong tac nhan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (theo chieu)) sang - thanh ((tuong va) OR (truong va)) trong cong tac nhan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) or (theo chieu)) sang - thanh ((tuong va) OR (truong va)) trong cong tac nhan cao".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (theo chieu)) sang - thanh ((tuong va) OR (truong va)) trong cong tac nhan cao*.