Perhaps you should try some spelling variations:
trinh dai » trinh tai, trinh di, trinh da
hieu viec » nhieu viec, hieu ve, sieu viet
thu sach » tu sach, thuat sach, thuoc sach
tinh dai » tinh da, tinh hai, tinh doi
ky lang » ky nang, ky tang, tay lang
ky dang » ky nang, ky danh
cua xuc » cua duc, cua tuc, cua cuc
xuc va » duc va, tuc va, luc va
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach ((ky lang) or (ky dang)) xa hoi. hieu viec cua xuc va ((tinh dai) or (trinh dai)) cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ((ky lang) OR (ky dang)) xa hoi. hieu viec cua xuc va ((tinh dai) OR (trinh dai)) cua te.
• Adding a wildcard symbol may retrieve word variants: thu sach ((ky lang) or (ky dang)) xa hoi. hieu viec cua xuc va ((tinh dai) or (trinh dai)) cua te*.