Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
hieu va » lieu va, hieu qua
cho cua » co cua, chi cua, cho ca
cua tuc » cua duc, cua tu, cua thuoc
y nang » ky nang, ly nang, v nang
me hoi » le hoi
tac xa » tuc xa, tac da
tuc va » thuc va, truc va, tuc xa

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach y nang ((me hoi) or (ma hoa)). hieu va cac ((tac xa) or (tuc va)) danh cho cua tuc~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach y nang ((me hoi) OR (ma hoa)). hieu va cac ((tac xa) OR (tuc va)) danh cho cua tuc.
• Adding a wildcard symbol may retrieve word variants: thu sach y nang ((me hoi) or (ma hoa)). hieu va cac ((tac xa) or (tuc va)) danh cho cua tuc*.