Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
cam thue » lam thue, nam thue, cam thiet
tang tri » trang tri, tang tai, tang thi
hieu va » lieu va, hieu qua
cam thu » nam thu, cac thu, ca thu
ha tang » phap tang, cao tang, kho tang
y nang » ky nang, ly nang, v nang
ma hoi » mai hoi, xa hoi, me hoi
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuat sach y nang ((ma hoi) OR (ma hoa)). hieu va ((cam thue) or (cam thu)) ha tang tri cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sach y nang ((ma hoi) OR (ma hoa)). hieu va ((cam thue) OR (cam thu)) ha tang tri cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat sach y nang ((ma hoi) OR (ma hoa)). hieu va ((cam thue) or (cam thu)) ha tang tri cua te".
• Adding a wildcard symbol may retrieve word variants: thuat sach y nang ((ma hoi) OR (ma hoa)). hieu va ((cam thue) or (cam thu)) ha tang tri cua te*.