Perhaps you should try some spelling variations:
thuat sach » thuat lanh
thuat san » thuat toan, thuat song, thuat lanh
dang thai » dang thi, dang hai, dang khai
cap nuoc » dat nuoc
nang ma » tang ma, sang ma, nang cao
va dang » van dang, va nang, va lang
cua duc » cua tuc, cua nuoc, cua quoc
ma hoi » mai hoi, xa hoi, ma hoa
va cap » va cac, va dap, va cao
y nang » ky nang, ly nang, v nang
cua tu » cua tuc, cua su, cua cu

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) OR (thuat san)) y nang ma hoi. lieu va cap nuoc va dang thai ((cua tu) or (cua duc))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thuat sach) OR (thuat san)) y nang ma hoi. lieu va cap nuoc va dang thai ((cua tu) OR (cua duc)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((thuat sach) OR (thuat san)) y nang ma hoi. lieu va cap nuoc va dang thai ((cua tu) or (cua duc))".
• Adding a wildcard symbol may retrieve word variants: ((thuat sach) OR (thuat san)) y nang ma hoi. lieu va cap nuoc va dang thai ((cua tu) or (cua duc))*.