Perhaps you should try some spelling variations:
hieu ve » hieu va, hieu van
cua tuc » cua duc, cua tu, cua thuoc
vu dai » vi dai, va dai, vu hai
dai ky » dan ky, dai ly, sai ky
ve hoc » te hoc, va hoc, vi hoc
va dan » ca dan, va dao, va dau
dan di » danh di, dan da, dan de
di cua » dai cua, doi cua, de cua
x hoi » xa hoi, o hoi, x ho
nuoc » quoc, duoc, ngoc

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu dai ky nang x hoi. hieu ve hoc nuoc va dan di cua tuc~.
• Adding a wildcard symbol may retrieve word variants: vu dai ky nang x hoi. hieu ve hoc nuoc va dan di cua tuc*.