Perhaps you should try some spelling variations:
mai khoi » mai khoa, tai khoa, cac khoi
nang mai » nang ma, nang tai, lang mai
van quan » van ban
cua quoc » cua nuoc, cua thuoc
tu sach » thu sach, su sach, te sach
hieu va » lieu va, hieu qua
cam vuc » cam xuc
vuc van » duc van, luc van, thuc van
quan di » quan doi, quan li, quan vi
y nang » ky nang, ly nang, v nang
va cam » va cham, va cac, va cao
di cua » dai cua, doi cua, de cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sach) or (thu hoach)) y nang mai khoi. hieu va cam vuc van quan di cua quoc~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (thu hoach)) y nang mai khoi. hieu va cam vuc van quan di cua quoc.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (thu hoach)) y nang mai khoi. hieu va cam vuc van quan di cua quoc*.