Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
tham thuc » nham thuc, tam thuc, thai thuc
pham thuc » phap thuc, pham chuc, nham thuc
nang mai » nang ma, nang tai, lang mai
hang dau » hang va, hang tai
van hang » van khang, van hoang, van thang
te sach » toc sach
hieu ve » hieu va, hieu van
mai hoi » mai khoi, dai hoi, lai hoi
y nang » ky nang, ly nang, v nang
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach y nang mai hoi. hieu ve ((pham thuc) or (tham thuc)) van hang dau ((cua te) or (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y nang mai hoi. hieu ve ((pham thuc) OR (tham thuc)) van hang dau ((cua te) OR (cua triet)).
• Adding a wildcard symbol may retrieve word variants: te sach y nang mai hoi. hieu ve ((pham thuc) or (tham thuc)) van hang dau ((cua te) or (cua triet))*.