Perhaps you should try some spelling variations:
trinh pham » trinh phan, trinh phap, trinh cham
doi chieu » doc hieu, doi chi, mot chieu
dung cong » dung trong
ho chieu » theo chieu, hoc thieu, mot chieu
canh dan » canh van, sanh dan, thanh dan
cua dung » cua dang, cua dong, qua dung
pham can » pham van, pham lan, pham ca
dan cua » dan ca, ban cua, dai cua

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 - canh dan cua dung cong trinh pham can~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doi chieu) OR (ho chieu)) xanh - canh dan cua dung cong trinh pham can".
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) OR (ho chieu)) xanh - canh dan cua dung cong trinh pham can*.