Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
su triet » su viet, su tien, ve triet
cua viet » ca viet, hoa viet, cua vat
te sach » toc sach
hang ca » hang va, nang cao, hang tai
qua cam » qua cham, qua cac, qua ca
va danh » va dinh, va dan, va hanh
y hang » ly hang, ty hang, yu hang
ca hoi » cau hoi, cua hoi, xa 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 y hang ca hoi. hieu qua cam xuc ((va danh) or (van hanh)) vi ((su triet) or (cua viet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y hang ca hoi. hieu qua cam xuc ((va danh) OR (van hanh)) vi ((su triet) OR (cua viet)).
• Adding a wildcard symbol may retrieve word variants: te sach y hang ca hoi. hieu qua cam xuc ((va danh) or (van hanh)) vi ((su triet) or (cua viet))*.