Perhaps you should try some spelling variations:
khang kho » khong kho, khong khoa, hang khoa
nang mai » nang ma, nang tai, lang mai
khang ky » dang ky, kieng ky, nhung ky
cham xuc » cam xuc, chat xuc, cham soc
te sach » toc sach
hong ky » thong ke
xuc van » duc van, luc van, vuc van
ve cham » va cham, ve chat, vu cham
hieu ve » hieu va, hieu van
mai hoi » mai khoi, dai hoi, lai hoi
su viet » so viet
sach v » sach va, sach y, sach 2
v nang » va nang, vu nang, van nang

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach v nang mai hoi. hieu ve cham xuc van ((((khang ky) OR (hong ky))) or (khang kho)) su viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach v nang mai hoi. hieu ve cham xuc van ((((khang ky) OR (hong ky))) OR (khang kho)) su viet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach v nang mai hoi. hieu ve cham xuc van ((((khang ky) OR (hong ky))) or (khang kho)) su viet".
• Adding a wildcard symbol may retrieve word variants: te sach v nang mai hoi. hieu ve cham xuc van ((((khang ky) OR (hong ky))) or (khang kho)) su viet*.