Perhaps you should try some spelling variations:
thuat lanh » thuat lap, thuat san
dang thai » dang thi, dang hai, dang khai
cac nuoc » cap nuoc, hoc nuoc, dat nuoc
nang ma » tang ma, nang cao, mang may
sang ma » tang ma, sang tao, mang may
va dang » van dang, va nang, va lang
cua duc » cua tuc, cua nuoc, cua quoc
lanh y » anh y, hanh y, lanh lay
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 lanh y ((nang ma) or (sang ma)) hoi. lieu va cac nuoc va dang thai ((cua tu) or (cua duc))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat lanh y ((nang ma) OR (sang ma)) hoi. lieu va cac nuoc va dang thai ((cua tu) OR (cua duc)).
• Adding a wildcard symbol may retrieve word variants: thuat lanh y ((nang ma) or (sang ma)) hoi. lieu va cac nuoc va dang thai ((cua tu) or (cua duc))*.