Perhaps you should try some spelling variations:
hieu hien » bieu hien, dieu hien, chieu chien
hien cac » thien cac, vien cac, hieu cac
cac nuoc » cap nuoc, hoc nuoc, dat nuoc
hanh tai » thanh tai, hang tai, han tai
hanh dai » hanh dao, vanh dai, thanh dat
nuoc van » nuoc va, nuoc san, luoc van
sach ly » sach y, sach ty, sach hay
nang xa » nang x, lang xa, nang ma
sach lo » sach dao, sach doi, sach hoi
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) or (sach lo)) nang xa hoi. hieu hien cac nuoc van ((hanh dai) OR (hanh tai)) cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach ly) OR (sach lo)) nang xa hoi. hieu hien cac nuoc van ((hanh dai) OR (hanh tai)) cua tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sach ly) or (sach lo)) nang xa hoi. hieu hien cac nuoc van ((hanh dai) OR (hanh tai)) cua tu".
• Adding a wildcard symbol may retrieve word variants: te ((sach ly) or (sach lo)) nang xa hoi. hieu hien cac nuoc van ((hanh dai) OR (hanh tai)) cua tu*.