Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
cham thuc » nham thuc, pham thuc, tham thuc
phan tap » phan lap, han tap, pha tap
van phan » van phong, van thanh, luan phan
thuc van » thuc vat, thuc dan, thuc va
thu sach » tu sach, thuat sach, thuoc sach
hieu vu » hieu va, hieu ve, hieu su
vu cham » va cham, vu kham, tu cham
ly nang » ky nang, ly hang, ly vang
tap cua » tap quan, tiep cua
hoc hoa » hoc khoa
y nang » ky nang, v nang, may nang
ho hoi » hoc hoi, hoa hoi, hoi hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach ((y nang) or (ly nang)) ((ho hoi) or (hoc hoa)). hieu vu cham thuc van phan tap cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ((y nang) OR (ly nang)) ((ho hoi) OR (hoc hoa)). hieu vu cham thuc van phan tap cua triet.
• Adding a wildcard symbol may retrieve word variants: thu sach ((y nang) or (ly nang)) ((ho hoi) or (hoc hoa)). hieu vu cham thuc van phan tap cua triet*.