Perhaps you should try some spelling variations:
ve triet » va trien, su triet
dan hanh » dang hanh, dan khanh, dan thanh
thuc dan » thuc hanh, hoc dan, thuc vat
hanh de » hanh ve, hanh kem
su sach » vu sach
so sach » so sanh, bo sach, co sach
ve cac » va cac, vien cac
y nang » ky nang, ly nang, v nang
ve cam » ve cham, va cam, ve cai
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: ((su sach) or (so sach)) y nang x hoi. hieu ((ve cam) or (ve cac)) thuc dan hanh de ve triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (so sach)) y nang x hoi. hieu ((ve cam) OR (ve cac)) thuc dan hanh de ve triet.
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (so sach)) y nang x hoi. hieu ((ve cam) or (ve cac)) thuc dan hanh de ve triet*.