Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
nuoc sach » nguoi sach, hoc sach, cuoc cach
thuc van » thuc vat, thuc dan, thuc va
nuoc sac » nuoc san, nuoc gac, nuoi sach
cac thuc » cach thuc, cac thu, can thuc
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
hanh di » hanh vi, hang di, danh di
hanh de » hanh ve, hanh kem
ve cac » va cac, vien cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((nuoc sac) OR (nuoc sach)) ky nang xa hoi. hieu ve cac thuc van ((hanh di) or (hanh de)) cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((nuoc sac) OR (nuoc sach)) ky nang xa hoi. hieu ve cac thuc van ((hanh di) OR (hanh de)) cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((nuoc sac) OR (nuoc sach)) ky nang xa hoi. hieu ve cac thuc van ((hanh di) or (hanh de)) cua triet".
• Adding a wildcard symbol may retrieve word variants: ((nuoc sac) OR (nuoc sach)) ky nang xa hoi. hieu ve cac thuc van ((hanh di) or (hanh de)) cua triet*.