Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
nhan truc » nhan thuc, nhanh thuc, nhan trung
thanh vai » thanh hai, thanh van, thanh tai
dua tren » dung tren
cua thep » cua tiep, cua thiet, cot thep
va thanh » gia thanh, ban thanh, va tinh
ve nhan » ve nha, de nhan, va nhan
truc va » thuc va, thuc vat, trung va
sach ky » sac ky, sach y, sach ty
hieu ve » hieu va, hieu van
tu sach » thu sach, su sach, te sach
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ky nang x hoi. hieu ve nhan truc va thanh vai ((((cua thep) or (dua tren))) or (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky nang x hoi. hieu ve nhan truc va thanh vai ((((cua thep) OR (dua tren))) OR (cua triet)).
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang x hoi. hieu ve nhan truc va thanh vai ((((cua thep) or (dua tren))) or (cua triet))*.