Perhaps you should try some spelling variations:
trung tran » trung tuan, trung thanh, hung tran
thong cong » trong cong, tong cong, thong thong
toc chieu » toc thieu, doc hieu, mot chieu
hoc thieu » toc thieu, hoc hien
tac chong » cac chuong, cac cong, cac chung
chong ban » hong ban, phong ban, chong buon
cong tac » cong ty

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((toc chieu) or (hoc thieu)) sang - hanh ((trung tran) OR (trung tam)) thong cong tac chong ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((toc chieu) OR (hoc thieu)) sang - hanh ((trung tran) OR (trung tam)) thong cong tac chong ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((toc chieu) or (hoc thieu)) sang - hanh ((trung tran) OR (trung tam)) thong cong tac chong ban".
• Adding a wildcard symbol may retrieve word variants: ((toc chieu) or (hoc thieu)) sang - hanh ((trung tran) OR (trung tam)) thong cong tac chong ban*.