Perhaps you should try some spelling variations:
phuong dan » phuong danh, phuong doan, huong dan
doi chieu » doc hieu, doi chi, ho chieu
canh minh » canh tinh, canh binh, chinh minh
phan lap » phan dau
phan cac » nhan cach, phan dau, phan van
minh va » tinh va, sinh va, sinh vat
va bang » va nang, va lang, va ban

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 (theo tieu)) tinh - canh minh va bang phuong dan ((phan lap) or (phan cac))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chieu) OR (theo tieu)) tinh - canh minh va bang phuong dan ((phan lap) OR (phan cac)).
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) or (theo tieu)) tinh - canh minh va bang phuong dan ((phan lap) or (phan cac))*.