Perhaps you should try some spelling variations:
hieu vien » hieu hien, hieu viec, thieu nien
vien cac » vien bach, vien dai, vien da
cac nuoc » cap nuoc, hoc nuoc, dat nuoc
nuoc van » nuoc va, nuoc san, luoc van
van hanh » van thanh, ban hanh, van anh
hanh doi » thanh doi, hanh noi, hang doi
te sach » toc sach
ly nang » ky nang, ly hang, ly quang
ly vang » ly hang, ly van, ly quang
doi cua » dai cua, hoi cua
cua tu » cua tuc, cua su, cua cu

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 ((ly nang) OR (ly vang)) xa hoi. hieu vien cac nuoc van hanh doi cua tu~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((ly nang) OR (ly vang)) xa hoi. hieu vien cac nuoc van hanh doi cua tu".
• Adding a wildcard symbol may retrieve word variants: te sach ((ly nang) OR (ly vang)) xa hoi. hieu vien cac nuoc van hanh doi cua tu*.