Perhaps you should try some spelling variations:
thanh va » thanh van, thanh ha, thanh ve
te sach » toc sach
hanh va » hang va, hanh vi
mai hoi » mai khoi, dai hoi, lai hoi
hieu ve » hieu va, hieu van
cau tuc » cau truc, cau tu, cau luc
ve cau » ke cau, va cau, ve cac
tuc va » thuc va, truc va, tuc xa
y nang » ky nang, ly nang, v nang
ma hoi » xa hoi, ma hoa, me hoi
cua su » qua su

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 nang ((ma hoi) or (mai hoi)). hieu ve cau tuc va ((thanh va) OR (hanh va)) cua su~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y nang ((ma hoi) OR (mai hoi)). hieu ve cau tuc va ((thanh va) OR (hanh va)) cua su.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y nang ((ma hoi) or (mai hoi)). hieu ve cau tuc va ((thanh va) OR (hanh va)) cua su".
• Adding a wildcard symbol may retrieve word variants: te sach y nang ((ma hoi) or (mai hoi)). hieu ve cau tuc va ((thanh va) OR (hanh va)) cua su*.