Perhaps you should try some spelling variations:
cham truc » cau truc, nham thuc, pham thuc
danh dao » doanh dao, lanh dao, danh dau
so sanh » do sanh
hieu va » lieu va
truc va » thuc va, thuc vat, trung va
va danh » va dinh, va dan, va hanh
dao cua » dai cua, day cua, dan cua
sanh y » sinh y, anh y, hanh y
y nang » ky nang, ly nang, v nang
cua tu » cua tuc, cua su, cua cu
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: so sanh y nang x hoi. ((hieu va) OR (hieu qua)) cham truc va danh dao cua tu~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sanh y nang x hoi. ((hieu va) OR (hieu qua)) cham truc va danh dao cua tu".
• Adding a wildcard symbol may retrieve word variants: so sanh y nang x hoi. ((hieu va) OR (hieu qua)) cham truc va danh dao cua tu*.