Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
theo chieu » theo tieu, ho chieu, theo chu
trong tinh » truong tinh, trong kinh, trong sinh
doi chieu » doi chi, ho chieu, mot chieu
doc hieu » toc thieu, hoc thieu, hoc hien
trinh ve » trinh he, trinh va, trinh vi
toan ban » van ban
ve dung » ve duong, ve rung, va dung

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 (((doi chieu) OR (doc hieu)))) xanh - hanh trinh ve dung trong tinh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chieu) OR (((doi chieu) OR (doc hieu)))) xanh - hanh trinh ve dung trong tinh toan ban*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo chieu) or (((doi chieu) OR (doc hieu)))) xanh - hanh trinh ve dung trong tinh toan ban*".