Perhaps you should try some spelling variations:
trinh cham » trinh chat, trinh chao, trinh han
doi chieu » doc hieu, doi chi, mot chieu
ho chieu » theo chieu, hoc thieu, mot chieu
sanh dan » canh dan, sach danh, sinh danh
cua dung » cua dang, qua dung, cua rung
cua dong » chua dong, cua cong, cua dang
cham can » pham can, tham canh, cam chan

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((doi chieu) or (ho chieu)) xanh - sanh dan ((cua dung) or (cua dong)) cong trinh cham can~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chieu) OR (ho chieu)) xanh - sanh dan ((cua dung) OR (cua dong)) cong trinh cham can.
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) or (ho chieu)) xanh - sanh dan ((cua dung) or (cua dong)) cong trinh cham can*.