Perhaps you should try some spelling variations:
hieu vien » hieu hien, hieu viec, thieu nien
kinh dai » sinh dai, kinh dao, kinh hai
vu sach » vu bach, su sach, vu khach
cac dac » cac dan, cac dai, cac bac
va kinh » va tinh, qua kinh
vu sac » vu san, va sac, vu cac
cua te » cua tu
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((vu sac) or (vu sach)) ky nang x hoi. hieu vien ((cac du) or (cac dac)) va kinh dai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((vu sac) OR (vu sach)) ky nang x hoi. hieu vien ((cac du) OR (cac dac)) va kinh dai cua te.
• Adding a wildcard symbol may retrieve word variants: ((vu sac) or (vu sach)) ky nang x hoi. hieu vien ((cac du) or (cac dac)) va kinh dai cua te*.