Perhaps you should try some spelling variations:
nham thuc » nhan thuc, nam thuc, nham thu
cua triet » cua viet, su triet
va trien » va truyen, va thiet, va tuyen
va triet » va thiet, ve triet, va viet
phan lap » phan dau
va phan » van phan, va phat, va phap
te sach » toc sach
sach ty » sach y, sach tu, sach thu
vu nham » vu kham, vu cham, sua nham
hieu vu » hieu va, hieu ve, hieu su
nang ho » nang hoc, nang co, tang ho
ty nang » ky nang, ty xang, ty hang
thuc va » thuc vat, thuc dan, thuc day
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: te sach ty nang ho hoi. hieu vu nham thuc va phan lap ((cua triet) or (((va triet) OR (va trien))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty nang ho hoi. hieu vu nham thuc va phan lap ((cua triet) OR (((va triet) OR (va trien)))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ty nang ho hoi. hieu vu nham thuc va phan lap ((cua triet) or (((va triet) OR (va trien))))".
• Adding a wildcard symbol may retrieve word variants: te sach ty nang ho hoi. hieu vu nham thuc va phan lap ((cua triet) or (((va triet) OR (va trien))))*.